... energy saving, beautiful appearance, easy maintenance WQP series stainless steel submersible sewage pump uses a unique single, double ... , material corrosion resistance of this product:Three, WQP stainless steel submersible pumps sewage conditions of use1, the medium ... impeller, anti-clogging good, efficient, easy to overload a flat power curve, precision balanced impeller, vibration, smooth rotation.2 ...