(Cu1) Marine Propeller is made of Manganese Bronze (Cu1). Marine propellers are divided into fixed-pitch propellers and controllable-pitch propellers. According to the blade, there are three-blade propellers, four-blade propellers and five-blade propellers..

(Cu1) Marine Propeller is made of Manganese Bronze (Cu1). Marine propellers are divided into fixed-pitch propellers and controllable-pitch propellers. According to the blade, there are three-blade propellers, four-blade propellers and five-blade propellers..

(Cu3) Marine Propeller is made of Ni-Al-Bronze (Cu3). Marine propellers are divided into fixed-pitch propellers and controllable-pitch propellers. According to the blade, there are three-blade propellers, four-blade propellers and five-blade propellers.

Marine propeller is a device with a rotating hub and radiating blades that are set at a pitch to form a helical spiral, that, when rotated, exerts linear thrust upon a working fluid, such as water. Propellers are used to pump fluid through a pipe or duct, or to create thrust to propel a boat through water.