... 2.Mterial:Yongxing Special Steel 3.Standard:ASTM,ASME,GB,JIS,DIN,EN. 4.Mterial:Yongxing Huzhou Dapu Stainless Steel CO., ltd ... ,ASTM A269,ASTM A778,ASTM A790,DIN 17456,DIN 17458,JIS G3459,JIS G3463Material GradeTP304,TP304L,TP316,TP316L,TP316Ti,TP316LN,TP317TP317L,TP321 ...