TONBAY INDUSTRY is located in Kaifeng, Henan, China. Factory covers a land area of 33300㎡with a total construction area of more than 26640㎡. It is one professional manufacturer of new and intelligent instruments, aiming to provide customer with high performance measuring instruments and one-stop service. Our main products are electromagnetic flowmeter, vortex flowmeter, turbine flowmeter, oval gear flowmeter, ultrasonic flowmeter, mass flowmeter, level meter and transmitters, etc. Our flo.....