Plastic extruder gearbox , gear box, plastic extruder machinery gear boxes,gear ... except very few small specification products.4. ZLYJ series gearbox is adopted by six-side processing box. Its normal ... . Efficiency transmission, low noise, long operation time.Plastic extruder gearbox , extruder gear box, plastic extruder machinery gear boxes,gear ... Input speed: 800 Output speed: 100 ZLYJ serial gearbox