We will test all the parts of the pump according to their standards:
Impeller blades: according to GB2100-80, test the dimension, surface roughness and hardness
Hub: according to GB/T11352-89, test the dimension, surface roughness and if damage
Impeller: test the impeller static balance, operating mechanism
Iimpeller chamber: according to GB/11352-89, test the dimension, suiface roughness, shell and the water pressure.