是的，但我比较喜欢1/4turn的那种ball valve.

来源: trendfollower 于 2013-09-01 08:33:39 [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.