The majority of our iron manhole covers, gully gratings and surface box product ranges hold B.S.I. Kitemark Certification and where applicable also meet the additional recommendations of BS 7903:1997 and HA104/02: 2002 - these are highlighted by our ULTRA product trademark. The company also incorporates the use of it's patented A.M.P. (anti-movement pockets) design into it's heavy duty products. This design feature gives maximum opportunity for the frame to key on to suitable bedding/fixing material to prevent movement in any direction during trafficking.