... vessel 3.CCS,ZY,ABS,BV,DNV,LR,GL,NK,RINA 4.Single,double rudder Standard Cylinder Hydraulic Boat Steering ... 's major classification societies, such as CCS,ZY,BV,ABS,etc. It is suitable for all kinds of river ... If needed, pls offer class, we could offer CCS,ABS,BV,DNV,LR,GL,RINA etc.We could design and ... such as Torque, just send to us directly. Standard Cylinder Hydraulic Steering Gear for Ship/Boat