... 310 321 317 347 5.BV ISO SGS schedule 40 stainless steel pipe 316 1.Specifications: stainless steel ... required( SCH5S,10S,10,20,30,40S,STD,40,60,80S,XS,80,100,120,140,160,XXS ... in our products, please feel free to contact me,2.products chemical composition3.Manufacturing Processe1)Process of seamless ... any questions,please contact with us. schedule 40 stainless steel pipe 316 & competitive price