Ministry of Commerce of the P.R.China - China Commodity Net
In the welding head for butt welding, socket welding head. Used in various vessel equipment, such as storage tank, heat exchanger, tower, reaction kettle, boiler and separation equipment, etc.. (20#, Q235, Q345, 16Mn, etc.) carbon steel, stainless steel (304, 321, 304L, 316 and 316L), alloy steel (15Mo3 15CrMoV 35crmov 45CrMo), aluminum 4 erw welded carbon steel pipe line pipe
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api 5l gr x42