Q41F-16CC低扭矩球閥
Q341F燃?xì)飧?dòng)式球閥
旋啟式止回閥
H41N臥式止回閥
JY41N/F/B型暗桿截止閥
J41N F燃?xì)饨刂归y
Z47F系列無(wú)泄漏燃?xì)馄桨彘l閥