Shanghai is flag Reducer Co., Ltd. is committed to China machinery and equipment manufacturing industry, precision gear reducer series of excellent suppliers. Positive flag business is a professional R & D, design, manufacturing, and maintenance as one of the gear manufacturing company, has introduced a number of sophisticated production and inspection equipment. The company specializes in the production: cycloid reducer (X, B, 8000,9000 series), Hardened gear reducer (ZDY, ZLY, ZSY, DBY, DCY, TY, ZJY other series), the hard tooth face gear reducer (ZDZ, ZLZ, ZSZ, QJ, ZSC (A), ZSC (L) and other series), soft tooth surface gear reducer (ZQ (JZQ, PM), ZQH, ZD, ZL, ZS, ZDH, ZLH, ZSH, ZQD series), worm reducer (WXJ, WS, WSJ, WCJ, WD, WHC, WHT, WHX, WP, CWU, CWS, CWO series) electric drum, screw lift, QJ crane with reducer, micro reducer, planetary cone-disk stepless variable speed drive, NGW planetary gear reducer, vertical chemical mixers, equipment grate reducer and other products. Our products are sold throughout the country and overseas, widely used in petroleum, lifting, mining, general chemical, textile, light industry, cement, construction and other industries.