sri lanka diamond concrete grinder disc minimal smell

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  • Grated Polycrete - ACO Drain

    2020-2-28 · Minimum grade 25MPa compressive strength cement concrete encasement. AS 3996 Load Class Encasement Dimension Calss A – B 100 mm Calss C – D 150 mm Calss E – G 200 mm It is recommended that the concrete encasement conforms to the minimum dimensions shown in the table above and illustrations to the right. These illustrations are a guide for

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