rose475 - 2009/7/30 9:25:00
紧急求助！！现求一个水泥净浆配比，需3天达到25--30兆帕，水灰比大约多少？IïÆ¢ "Ûbbs.3c3t.com;)q·Ò<ç
rose475 - 2009/8/1 9:32:00
怎么没人帮忙啊IïÆ¢ "Ûbbs.3c3t.com;)q·Ò<ç
1981ms - 2009/8/2 16:36:00
0.45:default6: :default6: :default6: :default6:IïÆ¢ "Ûbbs.3c3t.com;)q·Ò<ç
1981ms - 2009/8/2 16:37:00
用42.5的水泥！IïÆ¢ "Ûbbs.3c3t.com;)q·Ò<ç