gear box for extruder machine 1.Highly Standard Modular Designed 2.High ... have specialized in the field of injection and extruder machine parts.Features of products 1. Highly Standard Modular DesignedThe ... oil, oil seals, and bearings.6.Low NoiseAll key components are finished by precisely machining, accurate assembly, ... : Series double screw gear box for extruder machine(PVC, PP, PE, PA, PC, ABS .etc)