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。
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。
应用推荐