Zhejiang Guanyu Steel Tube Co., Ltd has been serving the World since 2003. It has passed the China Special Equipment Manufacturing License TS-A and B, EU Pressure Equipment Directive PED 2014/68/EU material certification, ISO9001 International Quality Management System Certification, ISO14001 environmental management system certification, ISO 45001 occupational health and safety management system certification

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 capacity more than 10,000 metric tons.

Guanyu Tube have built a complete quality management system and organization according to ISO 9001:2015 and PED 2014/68/EU. Quality control begin 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 inspection will be all though the producing process ensure the Stainless Steel Tubes, Stainless Steel Tubing, Stainless Steel Pipe and Nickel Alloy Seamless Tubes, Nickel Alloy Seamless Pipe finished in qualified. 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.

Stainless Steel U bend Tubes, BA Tube, AP Tube, Stainless Steel Reheater Tube Superheater Tubes, Condenser Tube, Heat Exchanger Tube, Super Duplex Pipe, Nickel Alloy Tube, Brass Seamless Tubes, Stainless Steel Hollow bar, Stainless Steel Oval Tubing, Stainless Steel Square Tubing, Stainless Steel Rectangular Tubing, Stainless Steel Capillary Tube, Stainless Steel Twisted Tube, Copper Nickel Alloys Tubes, Duplex Stainless Steel Pipe, Stainless Steel Hollow bar, Stainless Steel Mechanical Tube, Stainless Steel Hydraulic Tubing, Stainless Steel Instrumentation Tubing, Bright Annealing Stainless Tube, Seamless Stainless Steel Pipes, Corrugated Stainless Steel Tubing, Polishing Stainless Steel Pipe, Bright Annealing Stainless Steel Tube, Heat resistant Stainless Steel Tube, Welded Stainless Steel Pipe, Corrosion Resistant Stainless Steel Tube, Corrosion Resistance of Stainless Steel Tubes, SS Pipe, SS Tubes, SMLS SS PIPE, SMLS Tube, Stainless Steel Seamless Tube.