... Certificate Approved 2The fast delivery time . 3The competitive price 1. astm 316 stainless steel tube 1.be used in food engineer ... seamless pipes,stainless steel bar and stainless steel sheet. The material have 201,202,301, 309 309S 310, 310S,304,304L ... ,309S,310,310S,430,409specificationRound Square rectangle 3. Pictures show: astm 316 stainless steel tube