1. Parts of oil drilling mud pumps (BOMCO, HONGHUA, RONGSHENG, RG, etc.);
2. Parts for oil drilling rigs, workover rigs (RG, SJ, DFXK);
3. Parts of hydraulic disc brake system (BPM, BOKE, BOMCO, RG);
4. ATD push disc clutch and parts, WCB2 auxiliary brake and parts;
5. ZQ drill pipe power pliers and parts, TQ casing power and parts;
6. CB/LT series: pneumatic tire clutch and parts;
7. Agent sales: bearings, chains, universal shafts, and combination belts.