Sep 01, 2016 · CEMENT Portland cement is composed of calcium silies and aluminate and aluminoferrite It is obtained by blending predetermined proportions limestone clay and other minerals in small quantities which is pulverized and heated at high temperature – .

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May 01, 2020 · Threedimensional (3D) is a procedure used to create 3D objects in which consecutive layers of a material are computercontrolled produced. Such objects can be constructed in any shape using digital model data. First, this paper presents a stateoftheart review of the advances in 3D processes of construction. Then, the architectural, economical, environmental, and ...

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Feb 08, 2010 · 5. Basic drugs and chemicals . To manufacture, produce, refine, process, formulate, buy, sell, import, export or otherwise deal in basic drugs, phyto chemicals, plant extracts, dues, pesticides and their intermediates, laboratory and scientific chemicals used or cable of being used in the pharmaceuticals, textiles, agriculture, fertilizers, petrochemicals or any other industry and trade or ...