| model | Specification | Material | Applied to |
| WDF-28 | 4" | Carbon steel | Underwater valve |
| WDF-23 | 4"3" | Carbon steel/stainless steel/aluminum alloy |
| WDF-14 | 4"3" | Carbon steel/stainless steel/aluminum alloy |
| WDF-17 | 4" | Carbon steel/stainless steel/aluminum alloy | Oil removal valve/oil and gas back valve |
| WDF-15 | 3" | Carbon steel/stainless steel/aluminum alloy | Oil and gas recovery valve/edge plate valve |