... production process: sheet metal cutting deep draw,punching Product Description:1)Item Name:precision stamping parts2)Weight: ... punching machines, totally 20 sets.We can provide in-house design, tooling,manufacturing machining and coating ... metal cutting,deep draw,punching,machining,threading,and welding2)Surface treatment: zinc/nickel/chrome plating,hot galvanized,painting,pvc coating precision metal ...