The first major evolution to the True Union Ball Valve, Model-B, introduced the Tru-Bloc concept, a functional safety feature.
TrueUnion球阀的第一次重大改进是型号B，引进了Tru - Bloc的设计理念，一种更加安全的性能。
Days of professional production safety valve valve, ball valve, control valve and other products.
天和阀门专业生产安全阀，球阀，调节阀等产品。
Round Safety handle -design prevents accidental operation of low-torque ball valve by snagging the lever handle with personal clothing or equipment.
圆形安全手柄—这种结构用于防止由于人员服装或设备绊住水平手柄导致的低扭矩阀门的操作故障。
The valve for front stove of the piping fuel gas has the security ball valve and the security magnetic switch, which has security and protective function basically consistent with JA8000 safety valve.
安保磁力开关是管道燃气的灶前阀，它所具备的安防功能基本上与JA8000安全阀一致。
The valve for front stove of the piping fuel gas has the security ball valve and the security magnetic switch, which has security and protective function basically consistent with JA8000 safety valve.
安保磁力开关是管道燃气的灶前阀，它所具备的安防功能基本上与JA8000安全阀一致。
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