... Machiney ZLYJ Harden Gear Box for Plastic Extruder Machine I. Introduction:ZLYJ series reducer is specially designed ... plastic, rubber screw extruder with pushing package. All technical specifications of product design refer to JB/T8853-2001 "Cylindrical ... - ZSYJ450, ZSYJ560, ZSYJ630We also have many other different types of products, including reducers, motors, chains, electric rollers, Concrete ...