... .OEM service provided. 3.Material:200,300,400 series stainless steel casting 1.Grade:AISI316L,316,310S,310,303,304,317,321 ... ,300T,150T,65T,45T,25T,15T punching machines,CNC engraving machine,bending presses,platcutting machine etc.6.Quality guarantee of ISOO9001 stainless steel casting