What are the listed companies of Pearl Cotton?

Pearl cotton listed companies include Jingdezhen shares, Wensuo Company and Dahao Company. Pearl cotton is a kind of high-density pearl cotton shock-proof packaging, which is formed by physical foaming. The selection and temperature control requirements of foaming additives, anti-shrinkage agents and nucleating agents are relatively strict. When selecting foaming agent, it is required that it should be in a gaseous state when scaling and easy to liquefy under pressure. Secondly, the foaming agent is required to be colorless, odorless, non-toxic and non-corrosive, and will not remain in the polymer after foaming.