Silver Steel P20 ( Pre-hardened ) 4inch, Packaging Type : Black

possess good machinability and mirror ultrafinish performance;  dimensional stability; good tenacity and good machining performance. chief application thermoplastic plastic injection mould, extrusion die; thermoplastic plastic blowing mould; main parts of overloading mould; cold structural parts; commonly used in manufacturing tv shell, washing machine, inner shell of refrigerator and bucket, etc; bumper mould