Đồng hồ nước nguyên lý Woltmann
Đồng hồ nước nối bích EMS Model WT – Hybrid digital woltmann water meter
Đồng hồ nước nguyên lý Woltmann
Đồng hồ nước nối ren EMS Model TH – Hybrid digital multi-jet flow meter
Đồng hồ nước nguyên lý Woltmann
Đồng hồ nước nối bích EMS Model WT – Hybrid digital woltmann water meter
Đồng hồ nước nguyên lý Woltmann
Đồng hồ nước nối ren EMS Model TH – Hybrid digital multi-jet flow meter