Manhole Covers and Frames/Gully Grates

Manhole cover/Trench Covers 1) Material: Grey iron, ductile iron, 2) Type: Round type and Square type, triangle, 3) Sand casting, 4). We can produce as per customers'drawings. Casting manhole cover Our advantage 1)The manhole cover can be made in different standards of iron. 2)We can guarantee the quality use for long time. 3)Our technical engineer design the product for high accuracy. 4)Your supplied drawing is welcomed. We're a leader manufacturer specialized in making