EN124 D-400 cast iron channel grating 1,Minimum Load capacity class:D-400 2, ... Foundry 3,Material Ductile Iron EN124 D-400 cast iron channel grating SpecificationCode Frame Dimension(mm)Net manhole Openning(mm) ... mm)Carrying Capacity Standard Class(EN124)Net Weight(kg)U-300-F75750*300300210D-40041 Welcome your inquiry to:Shahe City ... cn1000951314 Heavy duty ductile EN124 D-400 cast iron channel grating