1.alloy steel pipe alloy steel pipe 2.Grade : ss 304-316L 3.Standard : API .ASTM.DIN .GB.BS 4.Size :OD6~630*WT1.5~30 1.alloy steel pipe 2. cold drawn seamless stainless steel pipe/tube3. type :austenitic seamless 4. grade:TP304 304L 316 316L 321 317 3475. size:(OD6-530)*(0.8-30)*(MAX.12,000MM),NPS1/8"-20"*SCH5-1606. standards:astm a312,astm a213,gost,jis,din,bs7. package:bundles or knitting bag ...