... quality Class B125, C250, D400, E600, F900 Meeting EN124,BVQI and Australian standarad. Round manhole CoverFeatures:1) Ten years' experience on ... ) 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 200mm to 1200mm.7) Certificate of Approval: BVQI, ...