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30+ Years of Manufacturing
Since 1992, manufacturing is all we do. You deal directly with the source — no layers, no markups, no middlemen.
About Gulian Pipe
Built for pipes. Trusted around the world.
A professional manufacturer of plastic piping systems since 1992 — designing, researching, producing and exporting PVC-U, CPVC, HDPE, PPR, PVDF, PP and PPH solutions to markets around the globe.
Our Story
Three decades of dedication to plastic piping systems.
Hangzhou Gulian Pipeline System Co., Ltd. is a professional enterprise specializing in the export of high-quality plastic pipes. With our factory located in Jiangshan, Zhejiang, we have been dedicated to the design, research and development, production, and sales of plastic piping systems for over 30 years.
Throughout our development, we have consistently upheld superior product quality, a comprehensive range of specifications, timely delivery, and competitive pricing. Our products are now exported to markets across the globe — including the United States, Europe, the Middle East, Southeast Asia, and beyond.
Guided by the principle of “Quality First, Customer First,” we sincerely welcome friends from both domestic and international markets to join us in mutual cooperation and shared success.
Founded
1992
Headquarters
Hangzhou, Zhejiang
Factory
Jiangshan, Zhejiang
Team
240+
50,000 ㎡
Factory Area
100+
Injection Machines
10
Extrusion Lines
20,000+ t
Annual Capacity
Our Advantages
What three decades of manufacturing actually gets you.
The specifics behind the headlines — capacity, certifications, coverage and accountability, each verifiable on a factory visit.
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Massive In-House Capacity
50,000 ㎡, 100+ injection machines, 10 extrusion lines, 20,000+ tons annual capacity.
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One-Stop Pipeline Solutions
PVC-U, CPVC (rated to 93 °C), PPH industrial pipe. Pipes, fittings, valves from 20 mm to 400 mm — from one manufacturer.
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Global Standards, One Factory
DIN, ASTM, JIS, GB — all under one roof. No switching suppliers when your market changes.
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Strict Quality Control
ISO 9001, NSF and CE available. Every batch pressure-tested with certificates.
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Factory-Direct & One Contact
One account manager from inquiry to delivery. Samples to full containers — we own the result.
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Proven Global Reach
Shipping to 30+ countries across Southeast Asia, the Middle East, Africa, and South America.
Your Concerns, Solved
What our customers worry about — and how we solve it.
Concern 01
“Am I paying too much because of middlemen?”
Factory-direct. No middlemen. No markups.
You deal with the manufacturer — from inquiry to delivery. Every quote comes straight from the people who make the product.
Concern 02
“Every market has different standards. Switching suppliers is a headache.”
DIN, ASTM, JIS, GB — one factory, every standard.
No switching suppliers when your spec changes. Pipes, fittings and valves all from us, manufactured to match the standard your project needs.
Concern 03
“Sample is good, but bulk quality is a gamble.”
ISO 9001 certified. NSF and CE available.
Third-party audits are always welcome — SGS and Bureau Veritas can inspect any batch before shipment. Pressure-test certificates are standard.
Concern 04
“After-sales? No one takes responsibility.”
One account manager. Full responsibility.
From inquiry to delivery, you deal with one person who knows your project. Samples to full containers — we work at your pace, and we own the result.
You're not buying from a middleman
Backed by 50,000 ㎡ of factory, 240 professionals, and 30 years.
Deal directly with the manufacturer — from first sample to full container, with one account manager owning the result.
Factory-Direct30+ YearsISO 9001 · NSF · CEDIN / ASTM / JIS / GB