... ,BV,GL,DNV,etc 2,12-13 USD/KG 3,Used for marine boat propeller,ship propeller 5,Fixed Specifications1,Approved ... ,BV,GL,DNV,etc 2,12-13 USD/KG 3,Used for marine boat propeller,ship propeller 5,Fixed pitch propellerMarine ... Zhang Tel:+86-514-87905089 Fax:+86-514-87905089 5-blade propeller