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PVC square pipe Manufacturers

I have found results from400+products and200+suppliers aboutPVC square pipe

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Rigid PVC Square Pipe for Plumbing Materials Construction and Furniture Framework 20mm 25mm 40mm Size

Rigid PVC Square Pipe for Plumbing Materials Construction and Furniture Framework 20mm 25mm 40mm Size

US$0.25-0.50
1,000 Pieces(MOQ)
Rigid PVC Square Pipes 19-60mm Custom Sizes for Construction Furniture Frames

Rigid PVC Square Pipes 19-60mm Custom Sizes for Construction Furniture Frames

US$0.37-0.57
1,000 Meters(MOQ)
Sample Available
PVC Square Tubes Smooth Surface PVC Square Pipe Outdoor PVC Pipe Square

PVC Square Tubes Smooth Surface PVC Square Pipe Outdoor PVC Pipe Square

US$0.37-0.57
1,000 meters(MOQ)
Sample Available
Cheaply Price Decorative Rectangular Plastic Pipe Tube Electrical PVC Square Plastic Pipe

Cheaply Price Decorative Rectangular Plastic Pipe Tube Electrical PVC Square Plastic Pipe

US$0.37-0.57
1,000 meters(MOQ)
Sample Available
Affordable Pricing Hydroponics PVC Square Pipe Plastic Flexible Rectangular Tubing

Affordable Pricing Hydroponics PVC Square Pipe Plastic Flexible Rectangular Tubing

US$0.37-0.57
1,000 meters(MOQ)
Sample Available
Factory Price Pipe Square Decorative Cover PVC Square Pipe 50X50

Factory Price Pipe Square Decorative Cover PVC Square Pipe 50X50

US$0.37-0.57
1,000 meters(MOQ)
Sample Available
High Quality PVC Pipe with Square PVC Pipe Sizes Agricultural Greenhouses Flower Pots & Planters Square PVC Tubes

High Quality PVC Pipe with Square PVC Pipe Sizes Agricultural Greenhouses Flower Pots & Planters Square PVC Tubes

US$0.37-0.57
1,000 meters(MOQ)
Sample Available
Custom Plastic Square Tube Electrical Square PVC Pipe UV Resistant PVC Conduit Pipe

Custom Plastic Square Tube Electrical Square PVC Pipe UV Resistant PVC Conduit Pipe

US$0.30-0.80
1,000 meters(MOQ)
Sample Available
Durable 19X19mm PVC Square Pipe Manufacturer Supply Plastic Profiles Wholesale Hard Pipe

Durable 19X19mm PVC Square Pipe Manufacturer Supply Plastic Profiles Wholesale Hard Pipe

US$0.30-0.80
1,000 meters(MOQ)
Sample Available
Rectangular PVC Pipe Flexible PVC/PP/UHMWPE Material PVC Square Pipe Outdoor

Rectangular PVC Pipe Flexible PVC/PP/UHMWPE Material PVC Square Pipe Outdoor

US$0.37-0.57
1,000 meters(MOQ)
Sample Available
Popular Selection PVC Co-Extrusion Square Tube Square Black Plastic Pipe

Popular Selection PVC Co-Extrusion Square Tube Square Black Plastic Pipe

US$0.37-0.57
1,000 meters(MOQ)
Sample Available
Factory Wholesale Flat Rectangular Pipes Hard PVC Square Pipe

Factory Wholesale Flat Rectangular Pipes Hard PVC Square Pipe

US$0.37-0.57
1,000 meters(MOQ)
Sample Available
Black/Blue PVC HDPE Square Pipe for Garden Irrigation and Water Drainage Corrosion Resistant Flexible

Black/Blue PVC HDPE Square Pipe for Garden Irrigation and Water Drainage Corrosion Resistant Flexible

US$0.25-0.50
1,000 Pieces(MOQ)
Hot Selling Rectangular PVC Tube Square PVC Plastic Pipe Price Per Meter for Roof Rain Drainages Square PVC Tube

Hot Selling Rectangular PVC Tube Square PVC Plastic Pipe Price Per Meter for Roof Rain Drainages Square PVC Tube

US$0.37-0.57
1,000 meters(MOQ)
Sample Available
Plastic Tubing Plastic Pipe HDPE Water Supply Pipe PVC Pipe Sleeve Square HDPE Pipe

Plastic Tubing Plastic Pipe HDPE Water Supply Pipe PVC Pipe Sleeve Square HDPE Pipe

US$0.37-0.57
1,000 meters(MOQ)
Sample Available
Factory Price PVC Plumbing Pipe Wear-Resistant UHMWPE Plastic Square Tube Black Rectangular Pipe

Factory Price PVC Plumbing Pipe Wear-Resistant UHMWPE Plastic Square Tube Black Rectangular Pipe

US$0.37-0.57
1,000 meters(MOQ)
Sample Available
Customizable Rectangular and Square Shape PVC Pipe Tubes Rectangular Plastic Hollow Pipe

Customizable Rectangular and Square Shape PVC Pipe Tubes Rectangular Plastic Hollow Pipe

US$0.37-0.57
1,000 meters(MOQ)
Sample Available
Hydroponics PVC Square Pipe Square Rectangle Round PP PE Square Pipe PVC ABS

Hydroponics PVC Square Pipe Square Rectangle Round PP PE Square Pipe PVC ABS

US$0.37-0.57
1,000 meters(MOQ)
Sample Available
PP Tube Extrusion PE-Tube Square PVC Pipe Widely Use Extrude Heat Resistant Plastic China Customized Customizable 1000 Meters

PP Tube Extrusion PE-Tube Square PVC Pipe Widely Use Extrude Heat Resistant Plastic China Customized Customizable 1000 Meters

US$0.37-0.57
1,000 meters(MOQ)
Sample Available
Manufacturer Custom PVC Square Pipe Plastic Extrusion 30X30mm Plastic Square Pipe Soft and Hard Co-Extruded PVC Rectangular Pipe

Manufacturer Custom PVC Square Pipe Plastic Extrusion 30X30mm Plastic Square Pipe Soft and Hard Co-Extruded PVC Rectangular Pipe

US$0.37-0.57
1,000 meters(MOQ)
Sample Available
Customizable 24.5mm Square PVC Plastic Tubes UV Resistant PVC Conduit Pipe

Customizable 24.5mm Square PVC Plastic Tubes UV Resistant PVC Conduit Pipe

US$0.37-0.57
1,000 meters(MOQ)
Sample Available
Customized Processed PVC Plastic Extruded Square Pipe for Mall Application Available in ABS PP Other Specifications

Customized Processed PVC Plastic Extruded Square Pipe for Mall Application Available in ABS PP Other Specifications

US$0.30-0.80
1,000 meters(MOQ)
Sample Available
Customizable 19mm Square PP PVC Plastic Pipes Fittings Multiple Standards Sizes UPVC PE Water Supply Cutting Service Available

Customizable 19mm Square PP PVC Plastic Pipes Fittings Multiple Standards Sizes UPVC PE Water Supply Cutting Service Available

US$0.37-0.57
1,000 meters(MOQ)
Sample Available
Wholesale PVC PC Square Pipe Low Price ABS PE Plastic Tube Square Black Plastic Pipe

Wholesale PVC PC Square Pipe Low Price ABS PE Plastic Tube Square Black Plastic Pipe

US$0.08-0.88
1,000 Pieces(MOQ)
Sample Available
Custom Non-Standard Square PVC Tubes Lightning Sampling Pipe for Farmhouse European Design Style

Custom Non-Standard Square PVC Tubes Lightning Sampling Pipe for Farmhouse European Design Style

US$0.30-0.80
500 meters(MOQ)
Sample Available
High-Quality PVC Tube Custom Pipe PVC Square UPVC Extrusion

High-Quality PVC Tube Custom Pipe PVC Square UPVC Extrusion

US$0.08-0.88
1,000 Pieces(MOQ)
Sample Available

Sourcing guidance for Pvc Square Pipe

How to choose the right material grade for PVC square pipes?

Selecting the correct material grade depends on the application. For industrial or chemical transport, prioritize uPVC (unplasticized PVC) for its superior chemical resistance and rigidity. If the pipes are for outdoor use, ensure the material includes UV stabilizers to prevent brittleness and discoloration. For drainage or cable protection, recycled PVC may offer economic feasibility, but for structural or pressure applications, always insist on 100% virgin PVC resin to ensure maximum tensile strength.

What are the key technical specifications to verify before purchasing?

Buyers must confirm the wall thickness tolerance, typically requiring a precision of ±0.2mm to ensure compatibility with connectors. Check the Shore Hardness (usually 70-80D) and Impact Strength to ensure the pipe won't crack under physical stress. For electrical applications, verify the dielectric strength and flame retardancy ratings, such as UL94 V-0, to meet safety compliance standards.

Which international compliance standards are essential for PVC square pipes?

Depending on your target market, the products should adhere to specific standards. For the US market, look for ASTM D1785 or ASTM D2241; for Europe, ensure compliance with EN 1401 or EN 1329. If the pipes are used for potable water (though rare for square shapes), NSF/ANSI 61 certification is mandatory. Always request RoHS and REACH certificates to ensure the absence of heavy metals like lead or cadmium.

How can I evaluate the quality of a PVC square pipe sample?

Perform a visual inspection for smooth internal and external surfaces without bubbles or pits. Conduct a flattening test: compress the pipe to 50% of its diameter; a high-quality pipe should not show cracks or breaks. Additionally, check the color consistency across the cross-section, as uneven coloring often indicates poor mixing of additives or the use of low-grade fillers.

Cross-Border Procurement Risks and Strategies for PVC Pipes

How can I mitigate the risk of receiving brittle or low-quality PVC pipes?

The most effective strategy is to request a third-party pre-shipment inspection (PSI) through agencies like SGS or Intertek. Specifically, instruct the inspector to perform a drop weight impact test and a longitudinal reversion test (to check heat stability). On Made-in-China.com, prioritize Audited Suppliers who provide comprehensive factory audit reports covering their production machinery and QC processes.

What are the best practices for negotiating pricing and MOQs with PVC manufacturers?

PVC pricing is highly sensitive to raw material (resin) market fluctuations. Negotiate a formula-based pricing model linked to global resin indices for long-term contracts. For MOQs, if you are a small buyer, suggest combining different sizes into one production run to meet the manufacturer's total weight requirement (e.g., 5 tons per shipment) rather than a high MOQ per individual SKU.

What shipping precautions should be taken for long PVC square pipes?

PVC pipes are prone to deformation under heat and cracking under pressure during transit. Ensure the supplier uses wooden crates or reinforced steel frames for LCL (Less than Container Load) shipments. For FCL (Full Container Load), use interwoven stacking to maximize space and prevent shifting. Specify that pipes should be kept away from the top deck of the ship to avoid extreme temperature exposure in tropical routes.

How do I ensure transaction security and payment safety?

Always use Secured Trading Services provided by Made-in-China.com to ensure your payment is only released after you confirm receipt and quality. Avoid direct transfers to private bank accounts. Use Incoterms like FOB (Free On Board) to maintain control over the shipping costs and insurance, ensuring you are not overcharged for logistics by the seller.

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