螺丝帽锈死喷灯最管用

所有跟帖： 

• 如果螺丝与螺母的材料有差别,并且螺母热膨胀系数大于螺丝的膨胀系数 -newpeople- ♀ (51 bytes) () 03/27/2012 postreply 16:59:10

• 螺纹会被破坏 -newpeople- ♀ (0 bytes) () 03/27/2012 postreply 17:01:58

• 回复：如果螺丝与螺母的材料有差别,并且螺母热膨胀系数大于螺丝的膨胀系数 -snapon- ♂ (27 bytes) () 03/28/2012 postreply 10:47:28

• why do u think so? -newpeople- ♀ (36 bytes) () 03/28/2012 postreply 16:41:14

• some place, u just can't use it, like place close to gas tank or -newpeople- ♀ (0 bytes) () 03/28/2012 postreply 16:46:18