... 3.low noise, high efficiency 4.competitive price WJ series aluminium alloy worm reducerworm reducer aluminium alloy square housing, ... OEM service offered. Product features of WJ series worm reducer 1. WJ series worm gearbox adopt aluminium alloy or cast ... pharmaceutical, leather, foods,beverage,etc. +Input form: flange input, motor input, shaft input;+Output form:hollow shaft, solid shaft or ...