Machine tools for high torque transmisions in drilling; Oil field equipment, namely, drilling rig mechanization machines and devices

Optical fibres; Optical fibre cables; Electrical conduit, ducts and tubes being structural parts for electric cables, electrical power cables, acoustic electric cables, optical signal cables, optical fibres and optical fibre cables, hardened fibre optical cables, ruggedized fibre optic cable, ruggedized fibre optic connector, connectors for fibre optic to the home, connectors for fibre optic to the premises, hardened closure in the nature of junction sleeves for electric cables, hardened fibr...