Was established in 1976, is China's earliest use of precision forging production gear professional enterprises, is the national excellent forging process model enterprises, is China forging Association, China Gear Association sponsor, is the Shandong Province Technology Development Center, Qingdao City High-tech enterprises, and with the China Ocean University to set up a mold and special materials Institute. The main products are automotive, engineering machinery and agricultural machinery drive axle differential precision forging gear.

Was established in 1976, is China's earliest use of precision forging production gear professional enterprises, is the national excellent forging process model enterprises, is China forging Association, China Gear Association sponsor, is the Shandong Province Technology Development Center, Qingdao City High-tech enterprises, and with the China Ocean University to set up a mold and special materials Institute. The main products are automotive, engineering machinery and agricultural machinery drive axle differential precision forging gear.