球体、阀座以及流体接触的部位均采用可溶性四氟乙烯（PFA）和聚四氟乙丙稀（F46）进行模压衬里的控制阀门，使其既有金属的强度，又有耐腐蚀的特性。

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.