Installation ,dismantle ,strip,repair and maintenance of lifting equipment:cranes(bridge ,gantry ,jib ,tower,train ,gantry,hoists ,crane,hoists ,winches).
Maintenance and repair of elevators,escalators, moving walkways ,lifts.
Steeplejack works ,painting of steel structures.
welding ,gas-flame work ,including on objects of Sea and River Register of the Ministry of defence