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球體、閥座以及流體接觸的部位均采用可溶性四氟乙烯（PFA）和聚四氟乙丙稀（F46）進行模壓襯里的控制閥門，使其既有金屬的強度，又有耐腐蝕的特性。

The control valve with molded lining made of soluble tetrafluoroethylene (PFA) and polytetrafluoroethylene propylene (F46) is used for the sphere, valve seat, and fluid contact parts, making it both metal strength and corrosion resistance.