做得挺专业。在离管道接地入口处不远的地方还需打一些小孔到水泥层下面的碎石层吗？

来源: 融融春意于 2025-10-13 17:13:41 [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.