You are viewing a single comment's thread from:RE: Visiting A Pencil Manufacturing Factory / 参观铅笔工厂View the full contextyigujin (29)in #dlive • 8 years ago 铅笔用了很多年了，没想到铅笔竟然是这样生产出来的，确实又涨知识了
我也是第一次见到，呵呵。