uPVC is the general abbreviation for un-plasticized poly vinyl chloride. This works as a very useful material used widely for doors, windows and pipelines these days. One very sure fact while using uPVC in the construction of windows and doors is it should be wrapped around a core made up of galvanized steel, and this galvanized steel makes uPVC much stronger and firmer. uPVC is extensively used because it is not easily affected by climatic changes unlike other substances like wood......