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Packing: ply wooden pallet / case with plastic layer Paint: antirust bituminous painting It is widely used in industrial construction and road facilities. Type: rounded, quadrate, rectangular, double triangle, double seal Main products: manhole cover, gully grate, trench grating, surface box. Circular manhole cover and square frame B125 300×300×17 175×175 5.5 kgs 600×600×30 425×425 25 kgs 800×800×35 610×610 700×700×75 600×600 46.5 kgs Square manhole cover and frame B125 400×400×30 310×310 12 kgs 500×500×40 400×400 22 kgs 600×600×50 498×498 32 kgs 700×700×50 598×598 45 kgs 800×800×55 698×698 59 kgs