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แปลว่าเครนล้อเข็น 4 ขา
Portland Cement (ASTM C 150)
แปลว่า(Concrete Engineering) The product obtained by pulverizing clinker consisting essentially of hydraulic calcium silicates.
Cement, Portland (ASTM C150) (Concrete Engineering)
แปลว่าA powdery substance made by burning, at a high temperature, a mixture of clay and limestone producing lumps called “clinkers” which are ground into a fine powder consisting of hydraulic calcium silicates. For non-portland cements, see aluminous cement.