Main product: Seamless/ welded stainless steel round/square pipe
Material: Two hundred and one, two hundred and two, three hundred and one, three hundred and four / three hundred and four L/ three hundred and four H, three hundred and sixteen / three hundred and sixteen L, three hundred and twenty-one / three hundred and twenty-one H, three hundred and forty-seven H, three hundred and seventeen / three hundred and seventeen H, three hundred and S, ferrite-austenite double-phase stainless steel (one thousand eight hundred and five, S thirty one thousand eight hundred and three / S two thousand two hundred and five, two thousand three hundred and three, etc. )