... 319, 3,Valve Open 4.Technics:CNC LATHE Brass quick coupler:high quality mold coupling,firmly and durable coupling mold parts ... for coolants in plastic injection moulds.Suitable for Water, Grease, Air & Oil.Connectors manufactured from solid Brass Locking rings, springs ... including high precision mould components such as Date marked pins, Air poppet,Slide retainers,Pipe plugs,Nipple, Mold Coupling ,Latch ...