This standard specifies the terms and definitions, classification and marking, requirements, test methods, inspection rules, signs, and use of aluminum alloy cable trays. Instructions, packaging, transportation and storage. China National Electrical Equipment Research Institute Co. Step-by-step guidance is provided to help avoid common pitfalls and ensure safety. Tailored drawings and customization services to meet your specific project needs. Our team ensures precise designs that align with. Shandong Hongfeng Electrical Group Co. is a professional cable tray manufacturer in China, committed to providing a variety of solutions for cable tray support systems. The company is situated in Jiaming Economic Development Zone, Liaocheng City, Shandong Province, covering an area of 19,800. Jiangsu Holdee Electric Co. We not only have our own warehouse and production workshop, but also have a huge galvanizing plant. With over 20 years of expertise, we specialize in the R&D, production, and global supply of high-quality cable tray systems, including perforated trays, cable ladders, trunking. Aluminum alloy is a kind of cable tray material, and the standard of aluminum alloy cable tray has many requirements.