... 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 ... The products have been widely used for machinery equipment, such as chemical, plating, ceramic, pharmaceutical, leather, foods,beverage,etc. ...