另外，在折弯、抗扭强度相同时，重量较轻，所以也广泛用于制造机械零件和工程结构。
In addition, the utility model has the advantages of light weight and bending strength, and is widely used for manufacturing mechanical parts and engineering structures.
另外，在折弯、抗扭强度相同时，重量较轻，所以也广泛用于制造机械零件和工程结构。
In addition, the utility model has the advantages of light weight and bending strength, and is widely used for manufacturing mechanical parts and engineering structures.
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