


FRAME SIZE(MM) D | COVER SIZE(MM) d | CLEAN OPENING(MM) P | BEAR WEIGHT |
400 | 300 | 270 | 10T |
470 | 400 | 350 | 5T |
570 | 500 | 460 | 20T |
680 | 600 | 550 | 10T |
720 | 650 | 600 | 5T |
780 | 700 | 650 | 15T |
830 | 700 | 650 | 50T |
1020 | 900 | 830 | 10T |






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Shandong Lurun Plastic Industry Co., Ltd.![]() Profile Certified by SGS/BV
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FRAME SIZE(MM) D | COVER SIZE(MM) d | CLEAN OPENING(MM) P | BEAR WEIGHT |
400 | 300 | 270 | 10T |
470 | 400 | 350 | 5T |
570 | 500 | 460 | 20T |
680 | 600 | 550 | 10T |
720 | 650 | 600 | 5T |
780 | 700 | 650 | 15T |
830 | 700 | 650 | 50T |
1020 | 900 | 830 | 10T |
Square 700*700mm Black Color Fiber FRP Manhole Cover Resin Composite for Sale
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