| Item | YF-DH-25 | YF-DH-20 | YF-DH-16 |
| Working situation | Automatic welding machine | Automatic welding machine | Automatic welding machine |
| Welding Range | Φ3-Φ28mm | Φ3-Φ20mm | Φ3-Φ18mm |
| MInimum length studs | 20mm | 20mm | 20mm |
| Weight | 3.3kg | 2.5kg | 2.1kg |
| Cable length | 2m | 2m | 2m |
| Working situation | Arc formula | Arc formula | Arc formula |
| MAteral | High temperature insulating plastic | ||
Technology continues to progress, subject to change, to prevail in kind
