Metal tubing composed of a single tube or a plurality of tubes encased in a sheath for the transmission of gases or liquids or for the housing of cable, and all other tubing and pipes included in this class; wire, cable, tube and pipe fittings, junction and union boxes, glands, grommets, tube racks, splicing connectors, terminal blocks, cable clamps and all other tube, pipe and cable fittings and accessories,

Rubber and synthetic tubing composed of a single tube or a plurality of tubes encased in a sheath for the transmission of gases or liquids or for the housing of cable, and all other non-metallic tubing included in this class, and grommets, tube pipe and cable fittings and accessories of gutta percha, india-rubber, balata or substitutes therefor,