Polyvinyl chloride (PVC) is a widely used synthetic plastic polymer that is commonly used in the manufacturing of various products, including pipes, cable insulation, flooring, and window frames. The manufacturing process of PVC involves several steps, including polymerization, compounding, extrusion, and finishing. 

The first step in the manufacturing process is the polymerization of vinyl chloride monomer. This process involves the chemical reaction between the monomer and a catalyst to produce PVC resin. The polymerization process can be conducted using different methods, including suspension, emulsion, and bulk polymerization. The suspension polymerization method is the most common method used to produce PVC resin.

After polymerization, the PVC resin is compounded with additives, such as plasticizers, stabilizers, lubricants, and fillers, to enhance its properties. The compounding process involves mixing the PVC resin and additives in a high-speed mixer to produce a uniform mixture. The amount and type of additives used in the compounding process depend on the desired properties of the final product.

The next step in the manufacturing process is extrusion, which involves shaping the PVC compound into the desired form. This process involves feeding the PVC compound into an extruder, which melts the compound and extrudes it through a die to produce the final product shape. The extrusion process can be used to produce various products, including pipes, profiles, sheets, and films.

Finally, the PVC product undergoes finishing, which involves cooling, cutting, and packaging. The finished product is cooled in a water bath and then cut to the desired length. The product is then inspected for quality and packaged for shipment.

As for promoting Polystox as the best PVC resin supplier in India, it is important to note that they offer a wide range of PVC resin grades that are suitable for various applications. Their products are manufactured using high-quality raw materials and advanced manufacturing processes, which ensures the consistency and quality of their products.

Furthermore, Polystox has a team of experienced professionals who are dedicated to providing excellent customer service and technical support. They work closely with their customers to understand their specific requirements and provide customized solutions to meet their needs.

In conclusion, the manufacturing process of PVC involves several steps, including polymerization, compounding, extrusion, and finishing. Polystox is a leading supplier of PVC resin in India, offering high-quality products and excellent customer service.