1) Material: stainless steel ASTM 304, 304L, 316L. 2) Application: Biochemistry, Pharmaceutical, Food.... 3) Machine polished according to your request: ID/OD Polished to 180 Grit (Ra<= 0.8um) to 420 Grit (Ra<= 0.4um). Sanitary pipes (Hydraulic tube, Stainless steel pipe welded stainless steel pipe , seamless stainless steel pipe.) Packing:Bundless,seaworthy wooden case,with or without edge protector,steel hoop and seal,or as per customer's requirement. Scope of application: Petroleum industry,natural gas,coal,chemical industry, electricity generation,machinery,boiler,shipbuilding, container,food,automobile,light industry,etc. Size: 1)Stainless Steel Seamless Pipe OD:6-830mm WT:0.5-40mm 2)Stainless Steel Rectangular Pipe OD:15*15-350*450mm WT:1-20mm 3)Stainless Steel Square Pipe: OD:15*15-400*400mm WT:1-20mm Manufacturing Standards Available: CHINA: GB/T 14975-2002;GB/T 14976-2002;GB 13296-91 U.S.A: ASTM A312; ASTM A213; ASTM A269; ASTM A789; ASTM A790 ASME SA312;ASME SA213;ASME SA269;ASME SA789;ASME SA790 JAPAN: JIS G3459;JIS G3463 GERMANY: DIN 2448;DIN 2458 BRITAIN: T14975 Cold Drawing Stainless Steel Seamless Tube structure steel tube