... new type of sludge pump researched & manufactured by our company,aiming at rivers and seas out of repair.WN pump is a ... with an impeller with 3 or 5 pieces of vane. At the same time, the impellers can be provided with various ... as Changjiang River, Huanghe River, Liao River, and Zhujiang Delta. Besides, sold to Europe, Middle East and Southeast Asia. CCS(China ...