non-rising stem wedge sluice valve

non-rising stem wedge gate valve 暗杆楔式闸阀 non-rising stem wedge sluice valve 暗杆楔式闸阀 non-rotating rubber sleeve stabilizer 非旋转式胶皮套筒稳定器 ..

 non-rising stem wedge gate valve

... non-rising stem valve 不升杆式阀 non-rising stem wedge gate valve 暗杆楔式闸阀 non-rising stem wedge sluice valve 暗杆楔式闸阀 ...

 INSIDE SCREW WEDGE GATE VALVES

... inside screw lift check valve 内螺纹升降式止回阀 INSIDE SCREW WEDGE GATE VALVES 暗杆楔式闸阀 ISRS Inside screw&Rising stem 内螺纹升杆 ...