standard:ASTM AISI JIS EN GB material:200/300/400 series The stainless steel pipeStandardASTM,DIN 17458-85,DIN17456-85,JIS G 3463,JIS G 3448,GB13296-91,GB9948-88,Material201,202,301,304,304L,310,310S,316,316L,317,317L,321,406,409,410,410S,904L,0Cr13,1Cr13,2Cr13,3Cr13,4Cr13SpecificationWall thickness1mm-80mmRound thickness8mm-760mmSquare thickness1mm-20mmOD10*10mm-150*150mmRectangle 1mm-20mm10* ...