Ships other than passenger ships
double helical gear (herring-bone gear)
equivalent spur gear of the bevel gear
equivalent spur gear of the helical gear
gear quadrant steering gear
gear shaping cutter for straight bevel gear
gear slotting cutter for spur gear
Generating gear of a gear
harmonic gear drive with radial gear meshng
harmonic gear drive with transverse gear meshng
planetary gear with conical involute gear
three-shaft Xing-type gear transmission with inner planet gear
Administrative Measures for Endorsement on Via of Ships Entering or Leaving Port
Agency for Ships SalePurchase
amphibious warfare ships
anchorage for deep-draught ships