Manhole Cover, Sump Cover, Drain Cover, Trench Cov

1.Environmental protection With raw material non-toxicity, it will not influence to user. 2.Applications: (1) Electric power pipeline well; post; telecommunication; communication pipeline well; (2) Street lamp well; fire control well; all kinds of valve wells; (3) City water; drainage pipeline well; heat supplied; gas well; (4) Open ditch; it as well as can be made according to customers requirements. paint: Bituminous paint Black packing: wooden pallet (normal) material: (ductile cast iron ) GGG50 Tensile strength: 500 Mpa Yield strees: 320 Mpa Elongation rate:7 % Hardness: HBS170 230 Standard EN124, UNIEN124, BSEN124 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