1.Column: 100mm width, Profile thickness: 2.0m.[could be ordinary or thcrmal break)2.Built-in galvanized steel structure, not punch in the main beam for safe purpose.3.lrvisible screws design, no screw holes and weldingjoints.4.The Side beam design with anti-shedding to prevent the glass being towed by strong wind.5.Flexible installation and can be disassembled many times.(with thermal break performance)