... and thrust block design. ZLYJ Gearbox for Plastic Extruder,gearbox for extruder machine,gear box SpecificationsZLYJ series speed reducer is ... precision hard gear surface and thrust block designed for plastic screw extruder. The design of product adapts all ... complete machine features compact, high in bearing capacity, stable in transmission, low noise, high efficiency, etc. ZLYJ Gearbox for Plastic ...