一区二区三(san)区ꦛ国产_四(si)个熟妇(fu)搡(sang)bbbb搡(sang)bbbb:
08-15
Operating conditions for injection molding of rubber and plastic molds
1. Off mold pressure: In principle, it should be greater than the total pressure of the plastic injection mold, based on no flash.2. Pressure and speed have some of the same contact effects in the mol