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Concrete mix ratio for 35 newtons per millimetre square

Jan 04 2018 · Concrete mixes are measured in grades which are calculated in newtons per square millimetre For example a C2530 is required to reach a compressive strength of 30 newtons after twenty eight days Strengths can range from 10 newtons through to hig

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shangwutong
Hi,may I help you with products, price, etc?