Name:Punching Holes Pipe/Tube Standard: ASTM, ISO Material: 201,304 Stainless Steel Name: Punching stainless steel pipea) OD:12mm(0.47'')--128mm(5.04'') X W.T 0.5mm(0.012'')--4mm(0.157'')b) metal Gr:201,202,304,316L ectc)specification according to your requirements Punching stainless steel pipe(JXB005)