... , 2.competitive price . 3.Mterial: Alloy steel . 4.Certificates:ABS,BV,DNV etc Propeller Shaft:Marine Propeller Shaft:Propeller shaft is a very important part of the ... it need to be high quality.1. Materials: Stainless steel ,Forged steel,Alloy steel.2. Certifications: ABS, BV, DNV, Gl, LR,NK, RINA ... products, please feel free to contact us for quotation. Marine Propeller Shaft