... steel pipes 1.Material grade:201,202,304,304L,316,316L,321,etc. 2.High quality 3.Best service AISI 304 stainless steel pipes ... Detailed description Name304 Stainless Steel PipeStandard ASTM A554, A312, A249, A269 and A270Material ... )Web:www.cnnbtl.com/www.yytl.com AISI 304 stainless steel pipes