... -51,hss steel 2.Hardness:60HRC~62HRC 3.high precision 4.Type: regular, ball-lock,ejector punch Products standard and ... part,mould componentsprecision mould parts Applied in automobile die, precision plastic mould,punch die,air conditioning fin die, semi ... , engine latheProjector (imported from Japan) Specialized in Processing precision parts according to customer’s drawing Contact by Drawing with ...