(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.