Weihai Longwei Power Station Instrument Factory
[ Manufacturer ]Main business are High temperature and high voltage washing-free stop valve, High and medium pressure pipe type double-color water gauge, Mica double-color water level gauge and Magnetic dobber two-color liquid level gauge etc.
Qinhuangdao Chunyan Instrument And Meter Co., Ltd.
[ Manufacturer Trader ]Main business are Double color water level gauge seal assembly