折弯系数
来源：华佗健康网
折弯系数扣除统计表铝板规格折弯角度45°60°3.0铝板90°120°135°45°60°2.5铝板90°120°135°45°60°2.0铝板90°120°135°45°60°1.5铝板90°120°135°扣除一道扣除两道
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