Coupling
- HTLAHTLB (basic type) coupling
- HTLCHTLD type coupling
- LJ type radial elastic pin coupling (JB/T7849-95)
- GY.GYS.GYH type flange coupling (GB/T5843-2003)
- DJSL type cross slider coupling
- JQ shell type coupling
- CSF-A1 type expansion joint sleeve (JB/T7934-1999)
- CSF-A2 type expansion joint sleeve (JB/T7934-1999)
- CSF-A3 type expansion joint sleeve (JB/T7934-1999)
- CSF-A4 type expansion joint sleeve (JB/T7934-1999)