4 roll wire to children) in a room, at the end of the axle (Casing) must support with bearings with lubrication system and has an open-shut cover is guaranteed by the cover to open.
4) Roll the wire will be installed in the engine compartment (Casing) at the end of the shaft must be supported by bearings and lubrication system. The cap - off devices supporting the cap to open it.
4) roll ball wire must be installed in the machine (Casing) at the end of the shaft to accommodate bearings with lubrication system and the cap open - off. Equipment support the lid to open.