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Description:The large-span curving roof produced by a HV-610 roll forming machine in combination with a HVW-610 curve-making machine is strong, and has high pitches. This type of roof is self-locking, which makes it easy to install, safe, and provides excellent waterproofing and storm resistance. These curving roofs can be directly produced onsite, thereby effectively lowering the cost. They are widely used to support roofs and walls in mid- and large-scale constructions, such as factories, warehouses, garages, exhibition centers, cinemas and theatres.