All Kinds Of Battery Spare Parts , Long Life Battery Accessories For Custom
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About the Cold runner and hot runner
Cold runner systems are used in injection molding machines to convey material from the nozzles to the mold cavity.The material cooled in the channel between the nozzle and the cavity (the runner) and ejected with the part.
A hot runner system is an assembly of heated components used in plastic injection molds that inject molten plastic into the cavities of the mold.