The source product of PVC is crude oil, which will have some influence. Because few countries in the world have steel futures, rebar is temporarily not affected by a specific foreign variety, but will be affected by the macroeconomic environment.

PVC (polyvinyl chloride) is the initiator of vinyl chloride monomer (VCM) in peroxides and azo compounds. Or a polymer polymerized under the action of light and heat according to a free radical polymerization mechanism. Vinyl chloride homopolymer and vinyl chloride polymer are collectively referred to as vinyl chloride resin. Its material is amorphous material. In practical use, stabilizers, lubricants, processing AIDS, pigments, impact agents and other additives are often added to PVC materials. It is nonflammable, high strength, weatherability and excellent geometric stability. PVC has strong resistance to oxidants, reductants and strong acids. However, it can be corroded by concentrated oxidizing acids such as concentrated sulfuric acid and concentrated nitric acid, and is not suitable for contact with aromatic hydrocarbons and chlorinated hydrocarbons.