Pneumatic,Pin-valve gate,Self-locked, Adjustable, Shut-off nozzle,PET preform mould,With hot runner system. 1. ... of the independently auto-lock preform mould, but also adopted the pneumatic valve gate equipment, to open and ... production.4.Prevent phenomena of salivating of the preform when open the mould.5.To prevent the ... decrease the mark of the products. 24 Cavities PET preform mould with Hot Runner.