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Compare ductile iron covers and frames price by checking the 600 mm opening, EN124 D400 class, security locks, coating and 65 kg unit weight.
Compare two EN124 D400 ductile iron manhole lid and frame options by material, unit weight, pallet packing, and 20-foot container quantity.
Why is a manhole cover round? Get answers on EN124 Class B125 load ratings, ductile iron dimensions, suitable applications, and round vs. square options — from HEBEI YONGQIAN TRADING CO.,LTD.