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Marine Propulsion System Stainless Steel Bronze/Electric Bow Thruster Propeller Shaft for Ship/Boat. Customized Dimensions: Diameter 100-2000mm and Length up to 12000mm available. High Corrosion Resistance: Surface treatments resist seawater erosion for extended service life. Precision Engineering: CNC machining ensures micron-level precision and balance. Comprehensive Certifications: Approved by ABS, BV, CCS, DNV, GL, LR, KR, and ISO9001. 1 Year Warranty: Covers mechanical defects for one year from purchase. 100% Quality Testing: All products undergo dynamic balance and non-destructive testing. Low MOQ: Minimum order quantity is 1 piece or 1 set. Online After-Sales Support: Technical assistance available via online channels.