It is suitable for supporting the internals of glass lined / Teflon lined column. The plane surface of the support nngcontacting with the medium is made of PTFE. After its surface is treated with Natrium treatment process and heated, thePTFE plate is evenly coated and tightly bonded to the outer surface of billet through tooling equipment. The corrosionresistance is completely guaranteed by the inherent characteristics of PTFE material. At the same time, sufficient billetthickness is adopted to ensure its stiffness, supportiveness and service life. After the product is formed, its outer surfaceis flat, the corners are rounded, smooth and not easy to stick, which ensures the sealing reliability and easy clean ling afterassembly in the equipment. The thickness of the lining layer is tested by the national standard high voltage spark test to ensure safety and durability.