不太理解,如果溼沙不夠硬,再摻些快乾水泥,強度就夠了

來源: khyang86 於 2022-03-05 20:15:04 [舊帖] [給我悄悄話] 本文已被閱讀：次

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