Semi-aluminum pump BL (pump part is aluminum alloy, motor spindle is stainless steel), aluminum pump L (motor and pump parts are all aluminum alloy, motor spindle is stainless steel), the use of semi-aluminum pump and all-aluminum pump, stainless steel The advantage of the shaft is that it can pump weak corrosive medium, PH value is 3.5 --- 6.5. QY series submersible pump is suitable for environmental water temperature is not higher than 40 ℃, the volume ratio of solid impurities in water does not exceed 1 ?, particle size is not greater than 0.20 mm, the depth of the water pump shall not exceed 0.5 --- 5 meters, QY pumping medium For non-corrosive water, PH value of water is 6.5-8; its structure is on the pump motor, water for underground mining, urban water company to take water, irrigation and drainage and other occasions. Balls Massager,Grid Foam Roller,Mini Foam Roller,Diy Slant Board Calf Stretch nantong pinli fitness co.,ltd , https://www.cnpinlifitness.com