IS 3989
Bengal Iron Corporation is a trusted name in the manufacturing and supply of cast iron manhole covers and frames, strictly adhering to the IS 3989 standard. With a strong focus on quality, safety, and durability, the company produces covers that meet prescribed load-bearing capacities, dimensional accuracy, and surface finish requirements outlined in IS 3989.Backed by advanced foundry practices and skilled workmanship, Bengal Iron Corporation ensures consistent strength, resistance to corrosion, and long service life across all products. Each manhole cover undergoes rigorous quality checks to comply with Indian Standard specifications, making them suitable for municipal roads, highways, industrial zones, and drainage systems.