Preform mould Mould characteristic being independent saying that the bottle is bad from lock heat current: 1. Adopt computer design , high-accuracy numerical control treating.2. Adopt advanced taper allocation technology, the type cavity , the core select and use entrance s136 and 718 high grade steel or use stainless steel (hardness> hrc45), every cavity is independent (within 0.05ú¡0.06mm locking up the model , guarantee mould concentricity partiality)3. The thread mouth makes according to the international standard , material selects and uses entrance nitriding steel (hardness> hrc60). 4. Exempt scissors running gates , full-automatic childbirth , lessening worker from labour force.5. Interchangeability: adopt advanced numerical control to process equipment , ensure all type cavities, core but mutual exchange. 6. Heat current says: select and use the entrance needle attacking the dyadic hot spray nozzle , advanced design idea, height but the sex charging reviews system , ensuring that heat current works is regular , improve plastic product mass.