Plastic mold  component cooling pipe.
DME standard.

Shenzhen threeup can manufacture worldwide standard plastic mould component. Such as date insert, air poppet valves, parting locks, slide locks, slide retainers, roller lock sets, heat pipes, mould counter, taper lock pin, taper block set, straight block set, locating block set, locating ring,water plug, screw plugs, gas vent, submarine gate, ball plungers, sprue bushing, ejector pins, puller bolt, stop pins, stop rings, lock pins etc.