1. Ring gear, 346 354 13 12
2. Material 20CrMo
3. GB/T5216-2004

Carburizing and quenching, surface hardness HRC=61±2,core hardness 32-45HRC,carburized case depth EHT=0.9-1.1.

We have our own production base in Xinwen Industrial Park which has passed the ISO/ TS 16949:2002 certification and follows strict quality management.

Our factory owns 767 equipments, including 6 carbonitridinig production lines, 330 gear-processing machines, 2 vacuum ionic nitriding furnaces and the largest line-up of vertical gear-broaching machines in Shandong, with the annual capacity of 2 million gears.

Crafts advanced, detection means complete and product quality reliable, we can provide high-quality service for you!