... product 1- Very high production rate 2- Excellent dimensional accuracy 3- Very low piece price punching productMaterial * Steel* Stainless steel* Carbon steel* Aluminum* Spring steel ... punching, threading,welding, tapping, rivetingMaterialAluminum, copper, brass, stainless steel, steel, iron, alloy, zinc etc.FinishPolishing; Anodize; SandingPowder ... , IPQC,FQC,QA stainless steel punching product