c15 програмууд бетон c20

Бетон М-150 (В12,5) ... For instance, C10 has the strength of 10 newtons, C15 has the strength of 15 newtons, C20 has 20 newtons strength and so on. 90005 90004 90005 90004 Different mixes (M) come in various mix proportions of the various ingredients of

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C15、C20C25,,C25,C20,。. :. C15::::0.62 : 1: 2.597 : 4.946;. C20 : ...