Knobs and dials which have a plastic exterior over a metallic interior are examples of insert molding. The substrate is inserted in to the mould, then plastic is injected on to it. Commonly this process makes use of thermoplastic resin as the overmolding material. Most polymers, at times often called https://meshbookmarks.com/story18211260/how-much-you-need-to-expect-you-ll-pay-for-a-good-plastic-injection-molding-manufacturer