The H - shaped steel column is lifted into position and aligned with the pre - embedded anchor bolts, and then fastened firmly with nuts. Pre - welding Preparation Material Inspection: Thoroughly check the H - shaped steel used for photovoltaic columns. Any defects such as cracks, uneven surfaces, or incorrect. Tianjin Wenli New Energy Technology Co., abbreviated as "Tianjin Wenli", was established in 2012 and is located in the Daqiuzhuang Industrial Development Zone, a steel base in Tianjin. It covers an area of 46,000 square meters and has a construction area of 35,000 square meters. The company. U-shaped steel is a common type of open-section cold-formed structural steel that boasts excellent impact resistance, bending resistance, and stability. With its lightweight and good rigidity, it is widely used in lightweight photovoltaic structures and carport. Traditional fixed-tilt photovoltaic (PV) support structures commonly employ inclined beams, double columns, and diagonal braces to resist and transfer horizontal loads.