Check modules are installed in the valve body with the seats facing the valve inlet.
Check modules are installed in the valve body with the seats facing the valve inlet.
安装在阀门内的止回模块其阀座应该面对阀门进口。
Check modules are installed in the valve body with the seats facing the valve inlet.
安装在阀门内的止回模块其阀座应该面对阀门进口。