Polyvinyl chloride or PVC is an ideal plastic material widely used in many industries, including construction, which is currently one of the most valuable products in the petrochemical industry. According to reports, up to 50% of PVC is used in construction. Features such as cheapness, accessibility, ease of use and flexibility soon replaced the traditional materials such as cement, stone, wood and aluminum. Currently, in the construction industry, PVC is mostly used to make double-glazed doors and windows, frames, water and sewage pipes and other necessaries for a building, and it is more durable than iron and wood products. The industrial sector of our company contains many industrial sheds, one of which is dedicated to PVC products and it is one of the largest producers in the western part of the country.