gear for ship gear box 1.Material:carbon steel 45,20CrMnTi,40Mn,65Mn 2 ... for ship gear boxSpecifications:1) Suitable for various automotive, construction machinery,ship machinery,agricultural machinery,etc. 2) Adopts advanced ... bevel gear,helical bevel gear.etc(2)Apply for automotive,construction machinery,ship machinery,agricultural machinery,etc. (3)Free ... to us within 30days gear for ship gear box