Preform Injection Mould from 1 cavity for wide mouth jar and gallon bottle perform up to 48 cavity narrow neck preform mould; Tube blank is designed with the help of computer, which surely contributes to the increasing of yield of bottle; Employed internationally advanced two-step dual taper locating technology. Each cavity self-locks independently to ensure low decentration of product; Core and cavity are made of special mold steel after preheating treatment in the original factory in Sweden. Individual temperature control of all cavity; Lip cavity is made of imported nitrated steel, which is of high hardness and long service life, in accordance with international standard; The excellent hot runner design assures uniform heating and greatly improves the quality of plastic product; No cutting of gate is employed to deduce the labor intensity; Standard inter-changeable mould components; The life of mould is more than 2 million times.