how to get rid of mould

...Mould Core Insert for Edible Oil Plastic Bottle Cap The Description Of Mold Core Insert Core Insert molding is also used to mold plastic on a metal part. that is to put metal parts such as screws or metal pins into a tooling manually before a molding process. the metal part will then be hold strongly by the plastic. Plastic will always shrink when it cools down. if the walls or rids...