... /heating system,Low voltage plumbing system 8.Small equipment for automatic control9.Water equipment,auto-control watersystem,industrial mini- ... R&D Staff: 11 - 20 People Number of QC Staff: 21 - 30 People Port: New Port,Tianjin/Beijin QA/QC: ... valve, hydraulic valve, electric valve, electronic valve.electric valve for water automatic control,brass or stainless steelmini motorized valve, actuated ...