制作 Timing belt 用的聚氯丁二烯橡胶，这种合成橡胶耐油是一大优点。

来源: TBz 于 2023-06-07 21:33:43 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.