... gear transmission,couplings,damages, gear unit,marine gearbox Business Type:Manufacturer,Trading Marine Gearbox Model 06.16A Description06 Marine gearboxpower/speed(kw/rpm):4.4 ... kind of mechanically operated power transmission unit designed for small crafts.They are simple in construction,easy of ... torque so as to complete marine power unit,which is fit for use on small riverboats or coasters,or ...