填料函和阀杆等部件均做表面硬化处理,采用先进的滚压硬化镜面加工工艺，使其表面光洁度达到镜面效果，阀杆和填料间的摩擦力更小
GV5100-16-DN15,GV5100-16-DN20,GV5100-16-DN25,GV5100-16-DN32,球形阀
GV5100-16-DN40,GV5100-16-DN50,GV5100-16-DN80,GV5100-16-DN100,GV5100-16-DN125,
GV5100-16-DN150,GV5100-16-DN200,GV5100-16-DN250,GV5100-16-DN300,GV5100-16-DN350,
GV5100-16-DN400,GV5100-16-DN450,GV5100-16-DN500,GV5100-16-DN600,
GV5100-32-DN15,GV5100-32-DN20,GV5100-32-DN25,GV5100-32-DN32,
GV5100-32-DN40,GV5