DEYUAN MARINE
Product Description
| Clear size | A1*B1 | Cut-out size | A2*B2 | t | Weight (kg) |
| A*B | A2*B2*R | ||||
| 500*600 | 536*536 | 580*580*130 | 646*646 | 4 | 22.38 |
| 600*600 | 636*636 | 680*680*140 | 746*746 | 4 | 26.29 |
| The tightness test of aluminium sunk type watertight hatch cover is the hose test. | |||||