soccer88

soccer88

外面看壳子原因，实际上新高强度钢材增加安全性很多

soccer88 (2016-02-24 14:21:50) 评论 (0)

http://www.autosteel.org/~/media/Files/Autosteel/Great%20Designs%20in%20Steel/GDIS%202015/Track%202%20-%20Reed.pdf