扭矩,彎拒,剪力再加衝擊力聯合作用.你當是彎鉛呢...回複：不錯，硬度越低越不斷！
WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.
Copyright ©1998-2025 wenxuecity.com All rights reserved. Privacy Statement & Terms of Use & User Privacy Protection Policy
