Controllable Pitch Propeller A controllable pitch propeller (CPP) is a type of marine propulsion system that consists of a propeller with blades that can be rotated to adjust the angle of attack or pitch of the blades...

Marine Main Propulsion Propeller Blade This product is main propulsion blade for ship propellers. It is made of copper, aluminum or stainless steel. The size of the blades is 3500mm...