A.1.3 B.1.2 C.1.5 D.1.4
A.10B.30C.60D.100
A.伸長(zhǎng)率數(shù)值 B.屈服強(qiáng)度數(shù)值 C.抗拉強(qiáng)度數(shù)值 D.質(zhì)量等級(jí)