1. WDK control box
2. YYSXJDL quantitative controller
3. YYXSJB flow integrator+
4. YYLQ roots wheel flowmeter
5. YYLZX intelligent Precession Vortex Flowmeter
6. YYLDC stainless steel gear flowmeter
7. YYLDC intelligent elliptic gear flowmeter
8. YYLC-A type cast iron elliptical gear flowmeter
9. YYLC-E type cast steel elliptical gear flowmeter
10. YYLC-B type organic compound flowmeter TAG：