Hesheng also offers a wide range of components and fittings of cable trays. Inside Straight Coupler is one of the fittings. We offer complete series of cable tray accessories make easy installation. Such as width adjustable connector, height adjustable connector, outside straight coupler, hold down unit, thread rod, nuts, cable tray clamp, cable tray cover and so on. Cable tray is a safe and economical solution for supporting requirements of electric power, signal, control, instrumentation and communication cables. Fabricated in numerous styles (wire mesh, ladder, ventilated trough, channel, and solid-bottom) and sizes, cable tray provides the greatest versatility among cable support systems, while offering savings of up to 84 percent in labor costs. H .S. Strut Channel is the original metal framing system featuring a unique weldless connection. The H .S. Strut Channel system eliminates welding and drilling, and is easily adjustable and reusable for infinite configurations.