Main parts and materials
| Parts Name | Materials |
| Body、Bonnet | ductile iron |
| Disc | ductile iron+ NBR/EPDM |
| Stem | Stainless steel |
| Seat Ring | NBR/EPDM |
Main parts and materials
| Parts Name | Materials |
| Body、Bonnet | ductile iron |
| Disc | ductile iron+ NBR/EPDM |
| Stem | Stainless steel |
| Seat Ring | NBR/EPDM |