闸阀图库
gate valve graphing database
API 6D平板闸阀
the slab gate valves of API 6D pipeline valves
暗杆楔式闸阀
non-rising stem wedge gate valve
non-rising stem wedge sluice valve
超低温闸阀
ultra-low temperature throttle valve
船闸阀门
filling valve of navigation lock
单闸板平板闸阀
single disc flat gate valves
弹性阀座闸阀
resilient seated gate valve
弹性密封闸阀
resilient seated gate valve
电动楔式闸阀
electric actuated wedge gate valves