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huangyhg

2009-09-07 08:45 AM

4 stone in exterior concrete slab on grade

#4 stone in exterior concrete slab on grade.
i have 2 concrete suppliers. one has no problem using #4 stone and the other is not comfortable using #4 stone in exterior slabs. does anyone know if there is any problem with using #4 stone in exterior slabs.

所有的时间均为北京时间。现在的时间是 06:00 AM.