... 2.ISO/API/GL/BV/DNV 3.STD:ASTM,AISI ,JIS,GB,DIN,EN Specification:Product Name : stainless seamless steel pipeOD: 6mm ... ,TP316,TP316L,TP321,TP410,TP430 Standard: DIN,JIS ,SUS ,ASTM,ASME,ANSI,AISI ,EN ,BS so on Surface: mirror /mill finish ,annealing ...