海词手机词典

The analysis in properties of 16Mn, 16MnV, 16MnV(N)angle steels shows that VN is a suitable alloy as microalloying large size and high strength angle steel.

播放读音 播放读音

以上内容独家创作,受著作权保护,侵权必究

海词词典,十七年品牌