punch die,for air conditioner fin -precision components -process according to your drawings -high precision ... -the pierce punches,punch die,pierce die inserts for fin die,-produced by Dalian Guoyu Precision Machinery Co.,Ltd ... locking blocksApplied inautomobile die, precision plastic mould,punch die, air conditioning fin die, semi-conduct encapsulation mouldProcessing materialsCopper, high speed steel ...