Ductile Iron Manhole Cover

The product is a ductile‑iron manhole cover manufactured by Handan Zhangshui Casting Co., Ltd in China. It is produced from Ductile Iron grades GGG500‑7 and 400‑12, with optional Grey Iron GG20 for lower‑load applications. The covers follow EN124 designs ranging from class A15 through F900, matching pedestrian to heavy‑vehicle load requirements. Coating options include a cold‑applied black bitumen layer, an uncoated finish, or a custom coating supplied by the buyer. Each unit is packed on a steel or wood pallet according to the customer's specification. The description mentions applications such as expressways, sidewalks, parks, municipal pipelines and telecommunication projects.

In the broader market ductile‑iron covers of this class normally have a thickness between 8 mm and 18 mm, with the heavier load classes requiring the upper range. Standard diameters run from 300 mm up to 1200 mm, giving a weight of roughly 30 kg per square metre for a 10 mm thick cover. The material grades GGG500‑7 and 400‑12 provide a tensile strength above 500 MPa, which is common for EN124‑compliant products. Surface hardness typically falls in the Brinell 150‑180 range, offering resistance to wear in high‑traffic environments. The bitumen coating commonly used in China adds a protective barrier against corrosion and slip, and can be replaced by epoxy or water‑base paints on request. These typical parameters align with the specifications supplied by Handan Zhangshui Casting.

Such covers are sourced by municipal authorities, civil‑engineering contractors and utility companies for road, drainage and telecommunication infrastructure. Buyers usually request a minimum order quantity that matches the standard pallet size and may ask for custom dimensions or sealing mechanisms. Trade negotiations should confirm the applicable Incoterm, payment schedule and lead‑time, which the supplier can detail after receiving the technical drawing. Samples can be requested to verify coating adhesion and dimensional tolerances before bulk production.

Handan Zhangshui Casting Co., Ltd is located in Wukongqi Village, Zhangcun Town, Linzhang County, Handan, Hebei, China, postal code 056600. The company is listed under the harbor trust tier on the platform, indicating a verified business registration, although its response rate is currently recorded as 0 % with no recent reply times.

The supplier offers a full casting workflow that includes moulding, casting, cleaning, coating and final packing, and can accommodate custom designs supplied by the buyer. No additional corporate history, employee count or revenue figures are disclosed in the listing.