Specification :

Zhejiang Guanyu pipe industry co., ltd., formerly known as wenzhou stainless steel pipe factory, is a large-scale stainless steel pipe manufactory.
Provided with fifteen cold- drawing machines, four sets of cold- rolling equipment, a full set of vortex and ultrasonic testing equipment, as well as a number of A-level engineers and assistant engineers, the company can produce seamless steel pipes with a specification of six --- four hundred and twenty six × half --- thirty six mm. The steel grades mainly include two hundred and one, two hundred and two, three hundred and one, three hundred and four / three hundred and four L/ three hundred and four H, three hundred and sixteen / three hundred and sixteen L, three hundred and twenty-one / three hundred and twenty-one H, three hundred and forty-seven H, three hundred and seventeen / three hundred and seventeen H, three hundred and S, ferrite-austenite double-phase stainless steel ( one thousand eight hundred and five, S thirty one thousand eight hundred and three / S two thousand two hundred and five, two thousand three hundred and three, etc) . The company produces ten thousand-odd tons of " Guanyu" brand stainless steel pipes
The raw materials the company adopts are from special steel Co., Ltd. NO.five Factory, Taiyuan Iron and Steel Co., Ltd., Jiuli Special Steel Co.; some special products use imported materials. Controlling the quality of raw materials makes the finished products quality ensured.All the products produced according to the standards of GB, HG, SH, ASTM/ ASME, JIS, and DIN have passed strict quality inspection.