Polymer products such as synthetic plastics, fibers, rubbers, coatings, adhesives have been applied more and more broadly, and become an group of indispensable material in modern life. Basic human needs such as clothing, food, lodging, and transportation are closely related with polymer products.

In Nepal, the meaning of chaitya is somewhat different . A Nepalese chaitya is not a building but a shrine monument consisting of a stupa-like shape on top a plinth, often very elaborately ornamented. They are constructed in memory of a dead person by his or her family by the Sherpas, Magars, Gurungs, Tamangs and…