About Cangzhou Mingzhu Plastic Co., Ltd. - Flanges Supplier in China

Cangzhou Mingzhu Plastic Co., Ltd. is located in China and currently lists five distinct products in its catalogue. The supplier’s top‑level category is recorded as Flanges, and the catalogue comprises an electrofusion coupler, HDPE silicon‑core pipe, PE80/100 gas pipe, PE80/100 water pipe, and a PE/Steel transition pipe (HS code 7307.99). The transition pipe combines carbon‑steel ASTM A234 WPB fittings with a PE100 polyethylene liner, reflecting a hybrid material approach. All items fall under polymer and metal pipe‑fitting families commonly classified under HS chapters 39 and 73. The supplier is classified as an imported, harbor‑tier supplier according to the provided trust tier.

These items target infrastructure applications such as gas distribution, water supply, and pipeline rehabilitation. The HDPE silicon‑core pipe and the PE80/100 gas and water pipes conform to pressure classes up to PN 10 (≈10 bar) as defined by ISO 4427, while the electrofusion coupler meets ISO 4437 standards for joint strength. The PE/Steel transition pipe listed under HS 7307.99 provides a mechanical interface between polyethylene and carbon‑steel systems, a configuration frequently required in retrofit projects. The catalogue therefore covers both pure polymer piping solutions and hybrid fittings suitable for cross‑material connections.

Product Range and Specialties of Cangzhou Mingzhu Plastic Co., Ltd.

Within the catalogue, the electrofusion coupler is a thermoplastic fitting designed for direct welding to HDPE pipe, typically supplied in sizes from DN 20 to DN 600 and rated to ISO 4437 class B or C. HDPE silicon‑core pipe incorporates a silicone‑filled core to enhance flexibility and low‑temperature resistance; industry standards such as ISO 4427‑2 specify a minimum melt flow index of 0.3 g/10 min and a density of 0.945 g/cm³. PE80/100 gas pipe and PE80/100 water pipe are classified by their PE100 grade, offering a minimum required strength of 10 MPa and wall thickness that satisfies PN 10 pressure rating. The PE/Steel transition pipe combines an ASTM A234 WPB carbon‑steel socket with a PE100 liner, aligning with ISO 4427‑1 for the polyethylene component and ASTM A234 for the steel component. Buyers generally encounter these product families under HS chapter 39 for polymer pipes and HS 7307 for steel fittings, and they are commonly packed in 20‑ft or 40‑ft containers with protective wooden pallets.

Trade and Export Information - Cangzhou Mingzhu Plastic Co., Ltd.

China is among the world’s largest exporters of HDPE piping and related fittings, with major shipment destinations in Southeast Asia, the Middle East, Africa, and Latin America. Products such as the electrofusion coupler and HDPE pipes are usually declared under HS 3917 (polyethylene tubes, pipes and fittings) while the hybrid transition fitting falls under HS 7307.99. Importing countries often require ISO 9001 quality‑management certification, ISO 14001 environmental compliance, and material test reports confirming compliance with ASTM D2513 (HDPE pipe) and ASTM A234 specifications for the steel component. Standard export packaging includes bundled pipe lengths, wooden crates for couplers, and moisture‑resistant liners; containers are typically shipped on CIF or FOB terms. Chinese manufacturers also adhere to the GB/T 13663 standard for HDPE pipe, which aligns with international ISO 4427, facilitating regulatory acceptance in many markets.

Sourcing from Cangzhou Mingzhu Plastic Co., Ltd. - Buyer Guidance

Potential buyers should request the supplier’s ISO 9001 certificate and the specific material test certificates for each product, including ASTM D2513 test results for the HDPE pipe and ASTM A234 certification for the steel socket. For the electrofusion coupler, a test report demonstrating compliance with ISO 4437 joint‑strength criteria is standard practice. Verify the pipe’s pressure rating (e.g., PN 10) and dimensional data such as outer diameter and wall thickness against project specifications before placing an order. Typical minimum order quantities range from one 20‑ft container for bulk pipe to 500 kg for couplers, with lead times of 30 - 45 days from order confirmation, subject to production scheduling. Buyers should also confirm packaging details - whether pipes are bundled with steel straps or wrapped in polyethylene film - and the intended Incoterm to align with customs clearance requirements.

What product categories does Cangzhou Mingzhu Plastic list?

The catalogue includes an electrofusion coupler, HDPE silicon‑core pipe, PE80/100 gas pipe, PE80/100 water pipe, and a PE/Steel transition pipe (HS 7307.99).

Which HS code applies to the PE/Steel transition pipe?

The transition pipe is classified under HS code 7307.99, covering other tube or pipe fittings of iron or steel.

What material standards apply to the HDPE pipe products?

The HDPE silicon‑core pipe and the PE80/100 gas and water pipes conform to ISO 4427 (or ASTM D2513) for polyethylene pipe, using PE100 grade with a minimum required strength of 10 MPa.

What certifications should a buyer request for these products?

Buyers typically ask for the supplier’s ISO 9001 quality‑management certificate, ISO 14001 environmental certificate, and material test reports confirming compliance with ISO 4427/ASTM D2513 for HDPE and ASTM A234 for the steel component.

What are typical minimum order quantities and lead times?

Bulk HDPE pipe orders usually start at one 20‑ft container (≈10 t), while couplers and transition fittings may have an MOQ around 500 kg; lead times are generally 30 - 45 days after order confirmation.

How are the products packaged for export?

Pipes are bundled and strapped or wrapped in moisture‑resistant film, couplers are placed in wooden crates, and all items are loaded into standard 20‑ft or 40‑ft containers under CIF or FOB terms.

Which markets commonly import these types of products?

Southeast Asian, Middle Eastern, African, and Latin American infrastructure projects frequently import Chinese HDPE pipe and fittings, especially for water and gas distribution networks.

Are there specific testing standards for the electrofusion coupler?

The coupler is typically tested according to ISO 4437, which verifies joint strength, burst pressure, and dimensional conformity for HDPE pipe connections.