... ,Cu4,Ni-Al Bronze,Stainless Steel 3)Used for boat, yacht or ship. boat marine propeller with 2 leaves1,Material: Cu1,Cu2 ... ,Cu3,Cu4,Ni-Al Bronze,Stainless Steel2,Boat propeller are used for yacht, boat or ship3,We can supply products according ... , we know that price is also an important factor6. Packing: Wooden Pallet packing. boat marine propeller with 2 leaves