By certification 
A.Tianshen's water meter case can be casted by various copper materials.
B.Gravity casting avoid water leakage.
C.refined apperance.
D.meticulous machining.
E.wet dial
F.universal use
B.Gravity casting avoid water leakage.
C.refined apperance.
D.meticulous machining.
E.wet dial
F.universal use
