and anti-dumping policies will affect the export market.

Rigid polyvinyl chloride (UPVC), also known as hard PVC, refers to an industrial product made by polymerizing vinyl chloride monomer and then adding additives or other resins for modification. Rigid polyvinyl chloride has the advantages of good chemical stability, high hardness, high melt viscosity, strong toughness, acid and alkali resistance, and anti-aging. It can be…