Roll formed shape is an environmental protective building material with reasonable section shape, good mechanical property and high utilization of steel.
冷弯型钢是一种截面形状合理、力学性能良好、钢材利用率高的环保型建材。
Roll formed shape is an environmental protective building material with reasonable section shape, good mechanical property and high utilization of steel.
冷弯型钢是一种截面形状合理、力学性能良好、钢材利用率高的环保型建材。
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