Friction welding - Wikipedia, the free encyclopedia

Friction welding (FRW) is a solid-state welding process that generates heat through mechanical friction between workpieces in relative motion to one another, with the addition of a lateral force called "upset" to plastically displace and fuse the material...

颱風警報等級的劃分！！

★★★喜歡請按讚★★★ 颱風警報等級的劃分 哈哈哈~~...

計算機中驚現！！！我覺得……挺像的……

★★★喜歡請按讚★★★ 計算機中驚現爾康！！！ 我覺得……挺像的……...

連薄紗我都沒有~真實的肉體

★★★喜歡請按讚★★★ 看~~全裸辣妹!!!!...

看，仔細看……你會看到什麼？

★★★喜歡請按讚★★★ 看，仔細看……你會看到什麼？…… 孫楊…...