... GB, ANIS, JIS, BS, DIN, UNI Material: carbon steel , stainless steel, alloy steelPacking: wooden cases or according to the customer's ... chemical industry electricity, metallurgy, shipbuilding extensively, industries such as gas burning,urban constructions, hot-water heating, war industry, fire control ... ,Cr5Mo,12Cr1SMoVK,10CrMo910,15CrMo,12Cr2Mo1,A335P22,St45.8 Stainless seamless steel pipe tee TP316