Ductile iron canal cover from 6.5kg to 150kg with various diameters,conforming to EN 124 standard. Class: A15,B125,C250, ... D400 We are an ISO9001:2000 certified enterprise in China, specialized in manufacturing of EN 124 ductile iron ... cover. Characteristics of our canal cover:1) Material: cast iron, ductile iron.2) Standard: EN124 A15, B125, C250, D400.3) Shape: round, ...