High purity lined PTFE, PFA steel container, the use of imported high purity lining materials, high purity clean workshop production, the process strictly follow the production specifications of high purity electronic grade products, products used in electronic grade chemicals high purity quality requirements, can meet the needs of electronic chemicals production, storage, purification, transportation, etc. It has the characteristics of high temperature resistance, corrosion resistance and negative pressure resistance, and has excellent drug resistance, easy cleaning and low ion precipitation.