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- Marine Power Equipment
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- Communication Navigation Equip
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- Marine Pumps and Piping System
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Contact Us
ADD: 18F, No. 157, Zhongshan 3 Rd., Yuzhong district, Chongqing, China
Post code: 400015
Mob/Whatsapp: +86-13640513313
TEL/FAX: +86-23-86595013
Email: manager@bochimachinery.com
Sunk Manhole Cover
Technology & Parameters:
| Type | Nominal Size | L1 | B1 | L2 | B2 | R | T | Bolts | Weight | |
| L×B | DIA | Qty. | ||||||||
| A | 530×430 | 710 | 610 | 752 | 652 | 250 | 12 | M20 | 20 | 118.3 |
| 630×430 | 810 | 610 | 852 | 652 | 250 | 24 | 134.9 | |||
| 630×480 | 810 | 660 | 852 | 702 | 275 | 24 | 141.1 | |||
| B | 530×430 | 656 | 556 | 698 | 598 | 250 | 18 | M20 | 20 | 81.5 |
| 630×430 | 756 | 556 | 798 | 598 | 250 | 24 | 93.4 | |||
| 630×480 | 756 | 606 | 798 | 648 | 275 | 24 | 98 | |||
Available in various sizes,and the size is changeable according to your will.