... .standard material Austenitic 304aa0Cr18Ni9 3.widely used in food equipen Industry stainless steel pipe1) Grade: AISI 304, AISI 201, ... : 400 grit, 600 grit, 240 grit, HL, 2B, BA industry stainless steel pipeCommodity StandardASTM A554, A249, A269 and A270, A312 ... pipe, rectangular pipe, embossed pipe and threaded pipe in China. Products are widely applicable to provincial and municipal projects, road ...