วิธีการปรับ
วิธีการปรับอัตราส่วนการผสมคอนกรีตของพืช batching rmc c15 to c40 grad concrete ratio study materialConventional grade C20, C25 and C30 concrete mix ratio. The concrete mix ratio refers to the proportion of the components in the concrete. The concrete mix ratio is usually represented by the quality of various materials per cubic meter of concrete, or amount proportion of various materials. such as, C10, C15, C20, C25, C30, C35, C40, C45, C50, C55, C60 and so price