1.Grade:300 Series 2.Size:(6mm-630mm)*(0.9mm-30mm) 3.Cerfitication:ISO, DNV, PED, GOST 4.Standard:ASTM, JIS, DIN, GB,GOST,EN Company image: Stainless steel seamless tube: Features:STANDARDS: AISI,ASTM,DIN,JIS,GB,GOST,ENGRADE :201,301,304/TP304/304L,321/F321,TP316L/316L,317L, 347H, 310S , Duplex S31803, etc.------------------------------------------------------------------------------------- ...