公司简介
Standing Material : 20 #, Q345. Technical standards : high-pressure boiler tubes GB5310-1995, of fertilizer GB6479-2000, oil cracking tube GB9948-2000, the low - and medium-pressure boiler tube GB 3087-1999, fluid control GB/T8163-1999, structural pipe GB/T8162- 1999, hydraulic stent GB/T17396 -1998. Domestic and imported high-pressure alloy pipe, made of Cr5Mo, Welding, 15CrMo, 35CrMo,