... ISO certificate CE certificate Submersible Axial-Flow/Mixed-Flow Sewage Pump. Specifications:1) Features: a) High efficiencyb) Submersible ... 3% 5%, and fight cavitation performance of the fine. CharactersticsQZ QH series pump has, single large flow, head of ... ecessary selection. ApplicationQZ QH series, reliable, mixed flow pump application scope for industry, agriculture, city water supply project ...