... tube pipe 1. Stainless steel tube pipe with good quality2. Surface: mirror, satin, HL, polish, etc3. Stainless steel tube pipe include: Round pipe, square pipe, rectangle pipe, screw pipe, embossed pipe ... quality of stainless steel tube pipe: ProductStainless steel tube pipe StandardASTM A554, A249, ... A269 and A270, A312,A778Material Grade201 ( Ni 0.8%),202 (Ni 3.5%~4 ...