And our automaticballvalve and LCD thermostat have got patent in China and CE certification in Europe.
韦纳电动球阀和彩色液晶温控器，均获国家专利，电动球阀也具有欧洲CE认证。
2
The invention discloses a different-pressure automatic shuttle valve, comprising valve body, through end cover, valve core ball, spring seat, spring, inlet end, outlet port .
本发明公开了一种压差式自动关闭阀，该阀包括阀体、通端盖、阀芯球、弹簧座、弹簧、进口端、出口端；
3
When the water level drops, the main valve is composed of a floating ball switch control to open the water inlet to the water tank, automatic replenishment.