Dear Sir, We are one of the few professional factories in China which specialized in producing the stern frame mainly for exporting for shipbuilding company and shipyards. Our professional and experience engineers can also design and making stern frame according your requirement and drawings such as: 1. Propeller 2. Propeller Blade 3. Propeller Cap/Accessories 4. Propeller Shaft/Stern shaft/Immediate Shaft/FWD shaft/ AFT shaft/ Shaft-line Accessories 5. Shaft bracket 6. Stern frame 7. Sterntube boss/propeller boss If you are interested in,please feel free to contact me for more information! Looking forward to hearing from you soon! Best regards, Mrs Yao Aiqin China Empire Marine Equipment Factory