海词手机词典

The results showed that after surface treatment CG-ATH has a good dispersion in PA66 and the limited oxygen index of PA66 with the treated CG-ATH improves from 25% to 30%.

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