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...(II) carbonate is a chemical compound that has a structure similar to calcite, with octahedral co-ordination symmetry. It is a carbonate that is insoluble in water and on treatment with acid it gives water s...
...molecular weight poly (methyl methacrylate) polymer as raw materials, and possess excellent biosafety, look like natural teeth precisely both in shade and form Apple CAD/CAM technology process mould, and mak...