PVC PRODUCTS >> WINDOW 'Duroplast' PVC window is the right replacement of timber and aluminium window. These are easy to handle, maintenance free. Special additives has been added during the manufacturing process for better UV stability and slamming.   Duroplast Extrusion Pvt. Ltd. Plot - 41 & 42, Phase III, Kasba Industrial Estate, Kolkata - 700 107, West Bengal, India Phone : 91.33.2442 0862/7706, 91.33.2443 1355, Fax : 91.33.2443 1415 E-mail : info@duroplast.org