The transmission of the fan is verified by dynamic and static balance. The centrifugal openingsystem reduces the wind resistance and greatly improves the efficiency of the fan.
EN818-7 hoist chain is lifting short link chains, which is used for chain hoist, lever hoist and electric chain hoist etc. We use high qualified alloy steel to produce hoist chains (Mn alloy steel), all hoist chains will be approved by 6-meter proof load