1) Stainless steel seamless pipes & tubes
Standard: ASTM A213, ASTM 269, ASTM A312, ASTM A511; DIN 17456, DIN 17458; JIS G3459, etc
Grade: 304, 304L, 316, 316L, 310, 317, etc

2) Stainless steel welded pipes & tubes
Standard: ASTM A249, ASTM A269, ASTM A312, ASTM A554, ASTM A778; DIN17455, DIN17457, etc
Grade: 201, 202, 304, 304L, 316, 316L, etc
Surface: HL, 180-600 grit outside finished for ASTM A554

3) Stainless steel sanitary tubes
Standard: ASTM A270, DIN 11850, etc
Grade: 304, 304L, 316, 316L, etc
Surface: 180-400 grit iniside and 180-600 grit outside polished