A.拉斷,彎曲,扭轉(zhuǎn) B.拉斷,彎曲,擠壓 C.拉斷,扭轉(zhuǎn),擠壓 D.拉斷,扭轉(zhuǎn),變形
A.5% B.6% C.7% D.8%
A.8% B.5% C.10% D.15%