Stainless Steel Welded Pipes/Tubes: Grade: Tp 304,304L , 316,316L ,430,201,202 etc. Surface Finish: #180 & hairline , #400 , #600 polished acc to ASTM 312,A554,270 Size: 3/8"-8", 20x10mm-150x100mm, 10x10mm-150x150mm