... the production of small diameter Oxygen blowing steel pipe,seamless oxygen blowing steel pipe welded steel pipes oxygen blowing. Specification modle:5*15 ... 303,302,301,202,201 and other stainless steel pipe round bar,square steel, angel steel and specical type of steel six ... ,304,304L,303,302,301,202,201,etc. stainless steel pipe,welded pipe.decorative pipe: Sus303,303S,SS316Ti,310S,321,630(17-7PH) high ...