... Class B125, C250, D400, E600, F900 Meeting EN124,BVQI and Australian standarad Manhole coverFeatures:1) More than ten years' ... produce drain covers using steel, stainless steel by electric welding and punching.5) Product series include Class B125, C250, D400, E600 ... , F900 meeting the relevant EN124, BVQI and Australian standards and so on.6) Form and Sizes available: square, rectangle, round, from ...