M12是螺紋尺寸,M17是螺母的外六角(扳手)有標準件,但也有非標的
本文內容已被 [ PolyGM ] 在 2019-04-15 20:23:08 編輯過。如有問題,請報告版主或論壇管理刪除.
WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.
Copyright ©1998-2024 wenxuecity.com All rights reserved. Privacy Statement & Terms of Use & User Privacy Protection Policy