37 Inspection, maintenance, installation, repair, refurbishment and rental of oilfield exploitation equipment in the course of construction, namely, pipes, pipework and tubes of metal, metal conduits, metal cladding, liner hangers, sandscreens, slotted tubulars, perforated tubulars, metal mandrels for use in oilwells, metal pipe clips, metal pipe connectors, metal pipe couplings and joints, metal pipe fittings, metal plugs, and casings for use in oil wells, wellbore liners, expandable pipes and tubes of metal, pipe and tubular expander devices of metal, anchors and inflatable anchors for use in anchoring pipes, collars of metal for fastening pipes and tubes, junctions of metal for pipes and tubes, linings of metal, reinforcing materials of metal for pipes and tubes, metal sleeves; on-site and off-site inspection, maintenance, installation, repair, refurbishment and rental of pipes, tubulars, articles, tools, machines and apparatus for completing and allowing production from boreholes; on-site and off-site inspection, maintenance, installation, repair, refurbishment and rental of gas and oilfield pipes, tubulars, articles, tools, machines and apparatus; completion of and production from boreholes, namely, maintenance, installation and repair of casing, lining, cladding, metal tubulars and pipes, expansion of metal tubulars, sandscreens, liner hangers, slotted tubulars, perforated tubulars; casing and lining of boreholes; on-site and off-site inspection, maintenance, installation, repair, refurbishment and rental of manmade structures used in and around boreholes; oilfield exploitation services, namely, oil, gas and water well casing, lining and drill pipe installation and repair; information and advisory services in relation to the foregoing