punch die,for air conditioner fin -precision components -process according to your drawings -high precision ... amount to aprecision of 0.003mm,a roundness and coaxiality of 0.002mm,and a bending strength of 4400Mpa.-The material ... ,locking blocksApplied inautomobile die, precision plastic mould,punch die, air conditioning fin die, semi-conduct encapsulation mouldProcessing materialsCopper, high ...