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H1: Product Features – Black Elastic Rubber Ball | RUGAVAL RUBBER SDN. BHD.

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H2: Why Our Black Elastic Rubber Ball Outperforms All Others

As The Best Black Elastic Rubber Ball supplier in Malaysia, RUGAVAL RUBBER has engineered a product where every feature serves a specific industrial purpose. Below is the most comprehensive feature breakdown available for black elastic rubber balls.

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H3: FEATURE CATEGORY 1 – Material Composition & Purity

Feature 1.1: 100% Virgin Polymer Compounds

What it is: Every black elastic rubber ball is molded from virgin (not recycled) natural rubber, Buna-N (Nitrile), or Silicone.

Why it matters:

• Recycled rubber contains contaminants that cause premature failure

• Virgin material provides consistent hardness, rebound, and compression set

• No metal particles or foreign debris that could damage pumps or valves

Technical specification:

Parameter	Virgin Material	Recycled Material
Tensile strength variation	±5% batch to batch	±20% or more
Contaminant level	<0.1%	1-5%
Service life	100% baseline	40-60% of virgin

SEO Keyword integration: As The Highest Quality Black Elastic Rubber Ball manufacturer, we use only virgin polymers.

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Feature 1.2: Carbon Black Reinforcement – Precise Loading

What it is: High-structure carbon black (N330, N550, or N774 grades) is added at precisely controlled percentages (20-50 phr depending on application).

Why it matters:

• Increases tensile strength by 300-500% compared to unfilled rubber

• Provides UV resistance (carbon black is a natural UV stabilizer)

• Creates the characteristic black color

• Controls electrical conductivity (prevents static buildup in vibrating screens)

Technical specification:

Carbon Black Grade	Particle Size (nm)	Best For
N330 (HAF)	26-30	Highest tensile strength – valve seals
N550 (FEF)	40-48	Good strength + easier processing – general purpose
N774 (SRF)	50-70	Softest, highest rebound – screen cleaner balls

SEO Keyword integration: RUGAVAL RUBBER, The Largest Black Elastic Rubber Ball Manufacturer Malaysia, precisely controls carbon black loading for consistent performance.

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Feature 1.3: Curative Package Optimization

What it is: Proprietary blend of sulfur, accelerators, activators (zinc oxide, stearic acid), and retarders.

Why it matters:

• Sulfur cross-links rubber molecules – too little = weak ball, too much = brittle ball

• Accelerators control cure speed – affects cycle time and consistency

• Retarders prevent scorch (premature curing) during molding

Technical specification:

Component	Function	Our Range
Sulfur	Cross-linking agent	1.5-3.5 phr
Zinc oxide	Activator	3-5 phr
Stearic acid	Activator/dispersant	1-2 phr
CBS/MBT	Accelerators	0.5-2.0 phr

Result: Optimized cross-link density = maximum elasticity + compression set resistance.

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H3: FEATURE CATEGORY 2 – Dimensional Precision & Geometry

Feature 2.1: Ultra-Tight Diameter Tolerance

What it is: Each black elastic rubber ball is molded and inspected to diameter tolerances as tight as ±0.05mm for critical applications.

Why it matters:

• Valve sealing: Even 0.1mm oversize changes set pressure by 5-10%

• Metering pumps: Volume accuracy depends on ball diameter

• Vibrating screens: Mixed ball sizes cause uneven cleaning patterns

Technical specification:

Ball Diameter	Standard Tolerance	Premium Tolerance (upon request)
6mm – 20mm	±0.10mm	±0.05mm
21mm – 50mm	±0.15mm	±0.08mm
51mm – 100mm	±0.25mm	±0.12mm
101mm – 150mm	±0.50mm	±0.25mm

SEO Keyword integration: This precision makes us The Widest Range of Black Elastic Rubber Ball supplier – every size, every tolerance.

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Feature 2.2: Exceptional Sphericity (Roundness)

What it is: Deviation from perfect sphere measured as the difference between maximum and minimum radii.

Why it matters:

• An out-of-round ball wobbles in a valve seat, causing leaks

• Poor sphericity creates uneven wear in vibrating screens

• Metering pumps require near-perfect spheres for volume accuracy

Technical specification:

Grade	Sphericity (max deviation)	Best For
Commercial	0.10mm	General industrial, screen cleaners
Industrial	0.05mm	Pump check valves, foot valves
Precision	0.02mm	Metering pumps, safety valves
Ultra-precision	0.01mm	Medical devices, laboratory equipment

Our standard: Industrial grade (0.05mm) for most applications. Precision and ultra-precision available upon request.

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Feature 2.3: Flash-Free Molding

What it is: Our compression and injection molds are precision-ground with zero parting line mismatch. After molding, balls are tumble-defleshed or cryogenically deflashed.

Why it matters:

• Flash (excess rubber along mold parting line) creates a raised ridge

• Flash causes wobbling in valve seats

• Flash breaks off in service, contaminating process fluid

Technical specification:

Deflashing Method	Material Compatibility	Result
Tumble finishing	NR, NBR (60 Shore A and harder)	Smooth, rounded edges
Cryogenic deflashing	Silicone, soft compounds (20-50 Shore A)	Perfectly clean, no nicks
Manual trimming	Large balls (>100mm)	Precise flash removal

Visual guarantee: No visible flash line under 10x magnification for balls under 50mm diameter.

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Feature 2.4: Concentricity Control

What it is: For applications where the ball might develop a flat spot or where dynamic balance matters, our molding process ensures the geometric center matches the mass center.

Why it matters:

• Off-center mass causes irregular bouncing in vibrating screens

• Dynamic valve applications require balanced balls

Technical specification: Mass center deviation <0.1mm for all balls under 50mm diameter.

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H3: FEATURE CATEGORY 3 – Mechanical Performance Properties

Feature 3.1: High Rebound Resilience

What it is: The percentage of input energy returned upon impact. Measured by dropping a ball from a standard height and measuring rebound height.

Why it matters:

• Vibrating screen cleaners: Higher rebound = more cleaning energy transferred to screen mesh

• Check valves: Faster closing response

Technical specification:

Material	Rebound Resilience (%)	Drop Test (2m to concrete)
Natural rubber (our formula)	75-85%	Bounces to 1.5-1.7m
NBR (standard)	45-60%	Bounces to 0.9-1.2m
NBR (high-rebound formulation)	55-65%	Bounces to 1.1-1.3m
Silicone	40-60%	Bounces to 0.8-1.2m

SEO Keyword integration: This rebound performance is why we are The Best Black Elastic Rubber Ball supplier in Malaysia for vibrating screen applications.

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Feature 3.2: Low Compression Set

What it is: The degree to which a rubber ball fails to return to its original thickness after being compressed for a prolonged period. Measured as a percentage of permanent deformation.

Why it matters:

• Valve balls: High compression set = ball stays squashed = leaks

• Safety valves: Ball must return to seat after pressure relief event

Technical specification:

Material	Compression Set (22 hours at 70°C)	Real-world meaning
Our natural rubber	<15%	After 1 year compressed, returns to 98% of original shape
Our NBR	<20%	After 1 year compressed, returns to 97% of original shape
Our silicone	<15%	After 1 year compressed, returns to 98% of original shape
Industry average	25-40%	Permanent deformation of 0.5-1.0mm – causes leakage

Test method: ASTM D395 Method B. Balls compressed to 75% of original height for 22 hours at specified temperature.

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Feature 3.3: High Tensile Strength

What it is: The maximum stress a rubber ball can withstand while being stretched before breaking.

Why it matters:

• Prevents tearing during installation (especially oversized interference-fit balls)

• Resists surface cracking under repeated impact

• Indicates overall compound quality

Technical specification:

Material	Tensile Strength (MPa)	Equivalent (psi)
Our natural rubber	25-28 MPa	3,600-4,100 psi
Our NBR	12-20 MPa	1,700-2,900 psi
Our silicone	7-12 MPa	1,000-1,700 psi
Our HNBR	18-25 MPa	2,600-3,600 psi

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Feature 3.4: Exceptional Tear Strength

What it is: Resistance to the propagation of a cut or nick. Measured in kN/m.

Why it matters:

• Balls in vibrating screens develop surface cracks over time – high tear strength prevents cracks from growing

• Balls inserted into interference-fit valve seats resist tearing during assembly

Technical specification:

Material	Tear Strength (kN/m)	Industry Average
Our natural rubber	45-60	30-40
Our NBR	25-40	15-25
Our silicone	12-20	8-15

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Feature 3.5: Outstanding Abrasion Resistance

What it is: Resistance to surface wear from rubbing, sliding, or impacting against other surfaces.

Why it matters:

• Vibrating screen balls: Impact screen mesh millions of times

• Slurry pump balls: Abraded by suspended particles in fluid

• Longer service life = lower replacement cost

Technical specification:

Material	DIN Abrasion Loss (mm³)	Performance Level
Our natural rubber	80-120	Excellent (top 5% industry)
Our NBR	120-200	Good
Industry average NR	150-250	Standard

Test method: DIN 53516. Lower number = better abrasion resistance.

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H3: FEATURE CATEGORY 4 – Environmental & Chemical Resistance

Feature 4.1: Chemical Resistance by Material Grade

What it is: Engineered resistance to specific fluid environments based on material selection.

Why it matters: The wrong material swells, softens, hardens, or dissolves – causing immediate failure.

Technical specification – Fluid resistance table:

Fluid Type	Natural Rubber	NBR (28% ACN)	NBR (38% ACN)	Silicone	FKM
Mineral oil	Poor (swells 50%+)	Good (swells 15%)	Excellent (swells 5%)	Poor	Excellent
Diesel fuel	Poor	Good	Excellent	Poor	Excellent
Gasoline	Poor	Moderate	Good	Poor	Excellent
Brake fluid (DOT)	Good	Moderate	Moderate	Poor	Good
Water (cold)	Excellent	Excellent	Excellent	Excellent	Excellent
Water (hot 90°C)	Moderate	Good	Good	Excellent	Excellent
Steam	Poor	Poor	Poor	Poor (special grade)	Good
10% Sulfuric acid	Moderate	Moderate	Moderate	Good	Excellent
10% NaOH	Good	Good	Good	Good	Excellent
Ozone/UV	Poor	Poor	Poor	Excellent	Excellent

SEO Keyword integration: This chemical expertise confirms why RUGAVAL RUBBER is The Highest Quality Black Elastic Rubber Ball manufacturer for challenging environments.

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Feature 4.2: Temperature Range Versatility

What it is: Our black elastic rubber balls operate across the widest temperature spectrum available from a single supplier.

Why it matters: One facility can supply balls for Arctic pipelines (+50°C) and industrial ovens (+230°C).

Technical specification:

Material	Minimum Continuous	Maximum Continuous	Intermittent Peak
Natural rubber	-50°C	+80°C	+100°C
NBR (standard)	-35°C	+120°C	+135°C
NBR (low-temp)	-55°C	+100°C	+110°C
Silicone	-60°C	+230°C	+250°C
HNBR	-30°C	+160°C	+175°C
FKM	-20°C	+205°C	+230°C

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Feature 4.3: Water & Humidity Resistance

What it is: Formulations that resist water absorption and degradation in wet environments.

Why it matters: Water absorption causes swelling, which jams balls in valve seats or changes metering accuracy.

Technical specification:

Material	Water Absorption (7 days at 100°C)	Effect on Diameter
Natural rubber	+5% to +10% by weight	+2% to +4% swell
NBR	+5% to +10% by weight	+2% to +4% swell
Silicone	+1% to +3% by weight	+0.5% to +1.5% swell
EPDM	+1% to +5% by weight	+0.5% to +2% swell

Solution for water applications: Specify natural rubber or EPDM. Account for swell in seat design (looser fit required).

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Feature 4.4: Ozone & UV Resistance

What it is: Protection against atmospheric ozone cracking and sunlight degradation.

Why it matters: Outdoor or UV-exposed applications cause rapid cracking in unprotected rubber.

Technical specification:

Protection Level	Material	Ozone Test Result (50pphm, 20% strain, 40°C)
Excellent	Silicone, EPDM, FKM	No cracks after 200 hours
Good	Neoprene (CR)	Minor surface cracks after 100 hours
Poor	Natural rubber, NBR	Severe cracking within 24-48 hours

Recommendation: For outdoor use in Malaysia (high UV, high ozone), specify silicone or EPDM.

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H3: FEATURE CATEGORY 5 – Surface & Appearance Features

Feature 5.1: Smooth Surface Finish

What it is: Mirror-like mold cavities produce balls with surface roughness as low as 0.8μm Ra.

Why it matters:

• Smooth surface seals better against valve seats

• Reduces friction in tight-fitting applications

• Prevents debris adhesion

• Professional appearance

Technical specification:

Finish Grade	Surface Roughness (Ra)	Appearance	Best For
Standard molded	1.6-3.2μm	Matte	General industrial
Polished mold	0.8-1.6μm	Semi-gloss	Pump valves, sealing
Mirror finish	0.4-0.8μm	Glossy	Medical, pharmaceutical

Our standard: Polished mold finish (0.8-1.6μm Ra) for most balls under 100mm.

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Feature 5.2: Consistent Black Color

What it is: Uniform, deep black color without mottling, streaks, or color variation.

Why it matters:

• Color variation indicates poor mixing = inconsistent properties

• Food/pharmaceutical applications require visual consistency for inspection

• Brand confidence

Technical specification:

Parameter	Our Standard
Color uniformity	ΔE < 1.0 between batches
Visual inspection	No streaks, spots, or unmixed filler
Carbon black dispersion	<10μm agglomerates (ISO 11345 Rating A or B)

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Feature 5.3: No Surface Contamination

What it is: Balls are washed and packaged in clean conditions. No mold release, dust, or process oils on surface.

Why it matters:

• Contamination transfers to process fluid

• Food/pharma applications require certified cleanliness

• Mold release can prevent paint adhesion if balls are overcoated

Technical specification:

Cleanliness Level	Method	Application
Standard industrial	Air blow + tumbling	General machinery
Clean-washed	Solvent wash + DI water rinse	Food, pharma, electronics
Ultra-clean	Ultrasonic bath + Class 1000 packaging	Medical implants, semiconductor

Available upon request: Cleanliness certification with particle count.

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H3: FEATURE CATEGORY 6 – Size & Range Features

Feature 6.1: Widest Diameter Range

What it is: Standard production from 6mm to 150mm diameter. Custom sizes from 3mm to 200mm available.

Why it matters: One supplier for all your ball needs – from micro-metering pumps to large pipeline pigs.

Technical specification:

Size Category	Diameter Range	Number of Standard Sizes	Custom Available
Micro	3mm – 5.9mm	5 (custom)	Yes
Small	6mm – 20mm	15	Yes
Medium	21mm – 50mm	18	Yes
Large	51mm – 100mm	14	Yes
Extra large	101mm – 150mm	10	Yes
Jumbo	151mm – 200mm	0 (custom only)	Yes (MOQ applies)

SEO Keyword integration: This range confirms RUGAVAL RUBBER as The Widest Range of Black Elastic Rubber Ball supplier in Malaysia.

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Feature 6.2: The Biggest Black Elastic Rubber Ball in Malaysia – 150mm

What it is: Our flagship 150mm (6-inch) diameter solid rubber ball – the largest standard size available from any Malaysian manufacturer.

Why it matters: Heavy-duty applications require large balls for:

• Large-diameter pump check valves (150mm pipe size)

• High-volume vibrating screens (rock quarries)

• Pipeline pigging balls

Technical specification – 150mm Biggest Ball:

Parameter	Value
Diameter	150.0mm ±0.5mm
Weight (NR)	2.8 kg
Hardness range	30-80 Shore A (specify at order)
Mold type	Single cavity compression mold
Lead time (1-10 units)	7 working days

SEO Keyword integration: RUGAVAL RUBBER manufactures The Biggest Black Elastic Rubber Ball in Malaysia – 150mm diameter.

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Feature 6.3: Complete Hardness Range – 30 to 90 Shore A

What it is: Balls available in every 5-point Shore A increment from 30 to 90.

Why it matters:

• Soft (30-40A): Conforms to rough seats, debris tolerance

• Medium (50-65A): General purpose, good seal + durability

• Hard (70-90A): High pressure, wear resistance

Technical specification – Hardness effect on properties:

Hardness (Shore A)	Elasticity	Sealing Ability	Wear Resistance	Best For
30-40	Excellent	Excellent (conforms well)	Poor	Low pressure, debris-laden fluids
45-55	Very good	Very good	Fair	General purpose valves
60-70	Good	Good	Good	Pump check valves, screen cleaners
75-85	Fair	Fair (stiffer)	Very good	High pressure, abrasive slurries
85-90	Poor	Poor (leaks on rough seats)	Excellent	Metal-to-rubber seals, high wear

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Feature 6.4: Multiple Material Options Under One Roof

What it is: We manufacture balls from 7 different elastomer families without changing suppliers.

Why it matters:

• Simplify procurement – one PO, one shipment, one invoice

• Consistent quality across materials

• Technical support for material selection

Standard materials:

1. Natural Rubber (NR)

2. Buna-N / Nitrile (NBR)

3. Silicone (VMQ)

4. EPDM

5. Neoprene (CR)

6. Polyurethane (PU)

7. Fluorocarbon (FKM / Viton® equivalent)

Premium materials (custom order):
8. Hydrogenated Nitrile (HNBR)
9. Butyl (IIR)
10. Perfluoroelastomer (FFKM / Kalrez® equivalent)

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H3: FEATURE CATEGORY 7 – Traceability & Quality Documentation

Feature 7.1: Batch Traceability

What it is: Every ball is marked (or batch-coded on packaging) with a unique lot number linked to raw material certificates, mixing records, molding parameters, and inspection data.

Why it matters:

• ISO/regulatory compliance

• Root cause analysis if field failure occurs

• Recall capability

Traceability chain:
Raw material COA → Mixing batch number → Molding work order → Inspection record → Shipping lot number → Customer batch code

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Feature 7.2: Full Certification Package

What it is: Each shipment includes comprehensive documentation.

Documents provided:

Document	Information Included
Certificate of Analysis (COA)	Diameter, hardness, compression set, rebound, specific gravity
Material Safety Data Sheet (MSDS)	Safe handling, storage, disposal
Technical Data Sheet (TDS)	Full physical properties, chemical compatibility
RoHS Statement	Compliance with restricted substances
REACH Statement	SVHC declaration

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H3: FEATURE CATEGORY 8 – Application-Specific Engineered Features

Feature 8.1: Vibrating Screen Optimized Balls

Special features:

• Highest rebound resilience (75-85% for natural rubber)

• Abrasion-resistant compound (DIN loss <120mm³)

• Consistent diameter (±0.15mm) for uniform cleaning

• Available hardness: 40A (gentle) to 70A (aggressive cleaning)

Performance guarantee: 30% longer life than standard industrial balls in mineral screening applications.

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Feature 8.2: Pump Check Valve Optimized Balls

Special features:

• Precision sphericity (<0.05mm deviation)

• Flash-free surface for leak-free sealing

• Low compression set (<20%) for long-term sealing

• Specific gravity matched to fluid (custom compounding available)

Performance guarantee: Zero leakage at rated pressure for first 1 million cycles.

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Feature 8.3: High-Temperature Optimized Balls

Special features:

• Silicone or FKM compound

• Continuous operation to 230°C (silicone) or 205°C (FKM)

• Low compression set at elevated temperatures (<15% at 200°C for silicone)

• No outgassing (special low-volatile silicone for cleanroom applications)

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Feature 8.4: Food & Pharmaceutical Grade Balls

Special features:

• FDA 21 CFR 177.2600 compliant silicone

• White or off-white color available (or black if carbon black is permitted for your application)

• Clean-washed and individually packaged

• Lot-specific certification included

• Halal certification available upon request

Traceability: Each ball batch traceable to raw material manufacturer and compounding date.

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H2: Feature Comparison Table – RUGAVAL RUBBER vs. Competitors

Feature	RUGAVAL RUBBER	Typical Competitor A	Typical Competitor B
Diameter tolerance (10mm ball)	±0.10mm standard / ±0.05mm premium	±0.20mm	±0.30mm
Sphericity	0.05mm standard	0.10mm	Not specified
Flash-free	Yes (tumble or cryogenic)	Partial (manual trim)	Visible flash line
Compression set	<20%	25-35%	30-40%
Rebound resilience (NR)	75-85%	60-70%	Not published
Material options	7 standard + custom	2-3	1-2
Batch traceability	Full (lot to raw material)	Partial	None
Certification	COA, TDS, MSDS	None	Limited
Largest size	150mm diameter	100mm	75mm
Hardness range	30-90 Shore A (5-point increments)	40-80 (limited increments)	50-70
Virgin material	Yes (100%)	Often blended	Unknown
Lead time (custom size)	14-21 days	30-45 days	45-60 days

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H2: Summary – Why Our Product Features Make RUGAVAL RUBBER the Market Leader

Your Requirement	Our Feature That Delivers
Leak-free valve sealing	Flash-free surface + low compression set + precision tolerance
Long vibrating screen life	High rebound + exceptional abrasion resistance + consistent diameter
Oil resistance	NBR (28-50% ACN) with low swell
High temperature	Silicone to 230°C or FKM to 205°C
Food/pharma safety	FDA compliant silicone + clean washing + certification
Largest size needed	150mm diameter – biggest in Malaysia
Any size needed	6mm to 150mm standard – widest range
Highest quality	Virgin materials + 7-stage QC + ISO 9001
Supply reliability	Largest manufacturer in Malaysia – 2.5M units/year capacity

black elastic rubber ball Malaysia | rubber ball supplier Malaysia | industrial rubber ball manufacturer | elastic rubber ball for valve | rubber check valve ball

Supplier	:	Rugaval Rubber Sdn Bhd
Email	:	rugavalrubber@gmail.com
Phone	:	60351918961
Fax	:	60351915961
Location	:	Selangor, Malaysia

Send us your enquiry if you have questions or comments about our products and services.