1.
Marine bronze flanged check valves
GB/T589-1993船用法兰青铜止回阀
2.
Marine bronze male thread lift check valves
GB/T597-1983船用外螺纹青铜止回阀
3.
Low pressure bronze male screw-thread check valve for marine use
GB/T1952-1980船用低压外螺纹青铜止回阀
4.
Marine bronze male thread stop and check valves
GB/T596-1983船用外螺纹青铜截止止回阀
5.
Marine bronze flanged stop check valves
GB/T588-1993船用法兰青铜截止止回阀
6.
Check Valve 1;Check Valve 2;Check Valve 3;Screw-down
止回阀 1;止回阀 2;止回阀 3;旋拧阀
7.
There shall be no brass or bronze parts used within the check valve assembly.
在止回阀总成内不应该采用黄铜或青铜部件。
8.
Marine low pressure bronze male threaded stop check valves
GB/T1953-1984船用低压外螺纹青铜截止止回阀
9.
There shall be no brass or bronze parts used within the check assembly or relief valve.
在止回阀总成和安全阀内部应该没有黄铜或青铜部件。
10.
Type of valve- gate, globe, check, etc.
阀门种类：闸阀，截止阀，止回阀，蝶阀，球阀，等等。
11.
check-valve mounting bracket
止回阀(装置)托架
12.
dual way check valve
双向止回阀（双通单向阀）
13.
"Valve Body, Cover, Tailpiece and Control Stop shall be in conformance with aSTM alloy Classification for Semi-Red Brass."
阀体、阀盖、附属件和控制止回阀均符合美国材料试验协会aSTM的半红铜合金分类标准。
14.
Now bring the check assembly through the check retaining wall.
现在将止回阀通过止回阀护壁取出。
15.
This is a gate valve (check valve, butterfly valve, cut-off valve, magnetic valve, remote valve, relief valve, throttle valve, cock).
这是一个闸阀（止回阀、蝶阀、切断阀、电磁阀、遥控阀、安全阀、节流阀、旋塞）。
16.
General purpose industrial valves-Casting iron globe valves and lift check valves
GB/T12233-1989通用阀门铁制截止阀与升降式止回阀
17.
Do check valves operate properly?
止回阀是否工作正常?
18.
inside screw lift check valve
内螺纹升降式止回阀