All kinds of high quality drainahe Class B125, C250, D400, E600, F900 Meeting EN124,BVQI and Australian ... steel by electric welding and punching.4) Product series include Class B125, C250, D400, E600, F900 meeting the relevant EN124, BVQI ... available: square, rectangle, round, from 200mm to 1200mm.6) Certificate of Approval: BVQI, LRQA, EN124. Drainage