... surface extruder gearbox of ZLYJ series for plastic tape drawing machine Series ZLYJ decelerator is a drive with high-precision and hard ... according to the specification in code ZBJ19009-88, featured with high-strength alloy steels for gear wheel and shaft parts ... drive ratio and assemblage mode respectivelyExample of earmark: ZLYJ 225-- 12.5 -- (,)ZLYJ series 133, 146, 173, 200, 225, 250, 280, 315, ...