Water Seal Gate Valves的意思|示意

水封闸阀 ... 双闸板平板闸阀Double Disc Flat Gate Valves 水封闸阀Water Seal Gate Valves 水力喷射器(真空泵) Vacuum Pumps ...

水封 ... 双闸板平板 闸阀 Double Disc Flat Gate Valves 水封 闸阀 Water Seal Gate Valves 水力喷射器(真空泵) Vacuum Pumps ...

学习生产水封闸阀 ... Wedge Gate Valves 楔式闸阀 Water Seal Gate Valves 学习生产水封闸阀 Waste Valves 排污箱(阀) ...

水启闸阀 ... 薄型闸阀 Thin Gate Valves 水启闸阀 Water Seal Gate Valves 电动楔式闸阀 Electric Actuated Wedge Gate Valves ...