About US

Zhejiang Guanyu Steel Tube Co., Ltd has been serving the World since 2003.

ISO 9001:2015, PED 2014/68/EU certified. Zhejiang Guanyu Steel Tube Co., Ltd is a specialized manufacturer of High Quality Stainless Steel Tubes & Pipe, Nickel Alloy Tubing & Pipe in China. Production area covers an area of 35,000 square meters. Annual output is more than 10,000 tons.

We have built a complete quality management system and organization according to ISO 9001:2015 and PED 2014/68/EU. Quality control begins with an audit trail and continues from the point of steel melting. for the raw materials, we select the best quality raw material for our customers. right through to the finished product. This level of attention to detail extends throughout the design and manufacturing chain, all kinds of inspection will be all through the producing process to ensure the Stainless Steel Pipe Tubing and Nickel Alloy Seamless Pipe, Copper Nickel Alloy Tubes, Brass Seamless Tubes are finished in qualification. With destructive and non-destructive tests according to standard specification and customer’s special requirement, and including verification of performance by independent third-party test houses.

Our Principles

Environment and Safety

Guanyu Steel Tube is ISO 14001 and OHSAS18001 Certified. We systematically seek to reduce the environmental impact of our business as well as the safety risks that our employees are exposed to. In particular with relation to the new conception of plants and the improvement of processes, we drive forward this optimisation process in terms of environmental impact and health and safety.

Thanks to all of our clients, your trust drives us to overcome millions of difficulties and achieve today’s success!

Main Raw Material Supplier:

Yonxing Special Material  / BAOSTEEL / POSCO / Sandvik / Outokumpu / Nippon Steel & Sumitomo Metal

Mainly Producing & Testing Equipment List