With our people-oriented management concept and professional technology, we continue to provide customers with high-quality Anchor Swivel Shackle, Solas Approved Life Jacket, 60P Marine Sewage Treatment Plant. We have always inherited the entrepreneurial, pragmatic and team spirit of hard struggle. Our code of conduct is dedication, collaboration, passion and innovation. Our company adheres to the long-term development goal of customer demand, and takes 'trust, persistence, innovation and development' as the basic core of the enterprise. We are looking forward to the common sustainable development with you. We have responded positively to national policies, further promoted corporate governance in accordance with the law, and strengthened compliance construction.
Marine ship cast iron sunk manhole hatch cover for ship is used for manhole on the oil tanks, void tanks and other tanks onboard various ships, it is fixed at flat positions of the hold bottom, deck and bulkhead. Marine ship cast iron sunk manhole hatch cover for ship is used for manhole on the oil tanks, void tanks and other tanks onboard various ships, it is fixed at flat positions of the hold bottom, deck and bulkhead.
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Main Material:
Cover: Carbon Steel Q235
Coaming: Carbon Steel Q235
Seal Ring: NBR
Bolt, Nut, Washer: Stainless Steel, Caron Steel , Copper
advantages:
l Security, prevent the cover being stolen
l No noise.
l High load-bearing
l corrosion resistance
l Safe
This marine manhole cover applies to the watertight and oiltight cover.
Material:
steel .
Certificates:
CCS, BV, ABS, GL,LR,RINA,NK ,etc.
Drawing of Sunk Manhole Cover:

Specification And Dimension Of Sunk Manhole Cover:
Type | Clear size | L1 | B1 | L2 | B2 | R | S | Fasteners | Weight(kgs) | |
L×B | ||||||||||
| DIA | QTY |
| |||||||
E | 530×430 | 656 | 556 | 698 | 598 | 250 | 14 | M20 | 20 | 73.02 |
18 | 81.5 | |||||||||
630×430 | 756 | 556 | 798 | 598 | 250 | 14 | 24 | 83.17 | ||
18 | 93.4 | |||||||||
630×480 | 756 | 606 | 798 | 648 | 275 | 14 | 24 | 89.67 | ||
18 | 98 |

Our company is actively expanding the export of our own brand Sunk Manhole Cover, opening up overseas markets and occupying market share. We have established a scientific quality control system and strictly abide by every production process from the purchase of raw materials to the delivery of the final product. This company always takes 'quality first, reputation first' as the entrepreneurial tenet.
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