Centrifugal pump cavitation causes

If the centrifugal pump in the work of the noise and vibration, accompanied by reduced flow, lift and efficiency, and sometimes can not even work, when the maintenance of the pump, you can often find the blade inlet side of the front cover and blade inlet edge Near the pitted or.......

Man refuses to go into the security check

A man did not cooperate with the judicial police in the court and arrested the marshals in the arrest of the judicial police. A few days ago, the Dongcheng court found that defendant Zhao committed crimes against public officials and sentenced him to six months of detention, suspended.......