... Pass SGS & over 50,000 open-close test 3. Easy Installation4. Strong Engineer team5. Slide, ball bearing slide, ... ChannelMaterial:Cold-rolled steel plateMax loading :35kgInstallation method:Side installation;40.8+0.2mmFinishing:Blue zinc-plated, color ... , black zinc-plated.Products features:Simple and easy hanging-inserting installation,quick separation mechanism,vibration prevention ball strip for ...