Physical details of Compact Disc

A CD is made from 1.2 millimetres (0.047 in) thick, polycarbonate plastic and weighs 15–20 grams.From the center outward, components are: the center spindle hole (15 mm), the first-transition area (clamping ring), the clamping area (stacking ring), the second-transition area (mirror band), the program (data) area, and the rim. The inner program area occupies a radius from 25 to 58 mm.
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Recognized University will issue the Fellowship certificate after successfully completing the "Hands On" laparoscopic training at World Laparoscopy Hospital under the international training protocol set by World Association of Laparoscopic Surgeons.

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