Yingkou Sanxing Group 
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The arched roof structure is a large-span roof structure formed by using matching equipment from Sanxing Company, generally using color coated rolled steel plates with a thickness of 0.6-1.5mm and a width of 300-1250 as raw materials, through pressing plates, locking edges, and hoisting. It has a short design and construction period, low investment, and fast construction, and is widely used in military facilities, sports venues, industrial factories, warehouses, garages, hangars, etc.