large diameter oil and gas sch 40 carbon steel tube spiral welded tube spiral pipes SSAW steel pipe

With an annual output of 15 million tons, Yuantai Derun is the largest ERW square pipe, rectangular pipe, hollow pipe, galvanized pipe and spiral welded pipe manufacturer in China. Annual sales reached $15 billion. Yuantai Derun has 59 black ERW pipe production lines, 10 galvanized pipe production lines ，3 spiral welded pipe production lines，1 JCOE LSAW steel pipe production line. Square pipe 10 * 10 * 0.5mm to 1000 * 1000 * 60MM, rectangular steel pipe 10 * 15 * 0.5mm to 800 * 1100 * 60MM, spiral pipe Ø 219-1420mm can be made of steel grades from Q (s) 195 to Q (s) 345B / gr.a-gr.d. Yuantai Derun can produce square rectangular tubes according to ASTM A500/A501, JIS G3466,EN10219,EN10210,GB/T9711,GB/T3091,GB/T3094,GB/T6728,BC1,EPD,PHD,ISO9001,ISO14001,ISO45001,BV,din2240 and as1163. Yuantai Derun has the largest square rectangular tube inventory in China, which can meet the direct purchasing demand of customers. Welcome everyone to cantact Yuantai Derun,and Real time connection inspection plant or factory visit！