Zhejiang Guanyu Pipe Industry Co., Ltd is a large stainless steel pipe manufacturer.Our factory occupies an area of  15,000 square meters.
Our company introduced in more than 10 advanced Cold Drawn Tube-making lines and Hot Piercing Machines, including forming lines, sealing lines, polishing lines, packaging lines, etc. Our annual output now reaches 50,000 tons. Our company has cultivated a professional group of experienced technicians and developed out advanced technologies. We mainly produce the OD to 630mm stainless seamless steel tubes, whose wall thickness ranges from 0.50mm-30.00mm and OD 6mm to 3000mm Stainless Welded tubes and various perforated pipes, whose wall thickness ranges from 0.20mm-20.00mm, length range is from 1 meter to 15 meters. Our products main materials are 201, 202, 301, 304, 304L, 321, 316, 316L, 317, 310s, TP347H, 2520, 2205, 904L,etc. Executed standard of products: ASTMA269/ ASTMA312 / ASTMA511/ ASTMA213/A213M/ ASTMA312/A312M, JIS3446/ JIS3448/ JIS3459/ JIS3463, DIN2462/GB/T14975-2002 GB/T14976-2002 or negotiation. 

We sell Steel tube,steel pipe,stainless steel pipe,stainless steel tube,seamless stainless steel pipe, seamless stainless steel tube,welded tube,welded pipe, round pipes,round tubes, square pipes,square tubes,seamless (SMLS) steel pipe, austenitic stainless steel pipe, wrought-steel pipe, hot-rolling seamless pipe, cold-drawing seamless pipe,seamless precision steel pipe, seamless precision steel tubes,polished pipes,polished tubes,boiler pipes,boiler tubes, Heat Exchanger Pipe, high-frequency welded pipe, high-frequency welded tube, precision welded steel tube, electric-resistance welded steel pipe, electric-fusion (arc)-welded steel-plate pipe