Combined cable trays are a new sort of modern cable trays that are popularly used in modern days. Combined cable trays are suitable for various cable-laying projects. They have simple structure and easy to install. Such cable trays are available in perforated type, channel type, ladder type or can be connected together to support cables in oil, gas plants and other industries. Features: Sturdy structure. Modern design. Resist corrosion, rust, chemicals. Heat dispersion. High ventilation property. High bearing capacity. Simple structure for easy assembly. Freely combined with different kinds of cable trays.