... efficiency ZLYJ series gear reducer,ZSYL series speed reducer ,ZLYJ series speed reducer ,IntroductionZLYJ series reducer is ... specially designed high precision hardened gear transmission equipment for plastic, rubber screw extruder ... is compatible with GB 10095-88, grade 6model series ZLYJ112, ZLYJ133, ZLYJ146, ZLYJ173, ZLYJ200, ZLYJ225, ...