Hull structure lightening hole sealing device and hole sealing method thereof
Rain shed and method for improving straight segmented construction conditions
Gear shifting motor, gear shifting method and electric vehicle applying motor
Segmented construction method for inner bottom of LNG (Liquefied Natural Gas) ship
Electric vehicle, integrated hub motor for electric vehicle and use method of hub motor
Container ship torsion-resistant box segment assembling device and using method thereof
Construction method for segmented key nodes of LNG (Liquefied Natural Gas) ship
Modularized integrated water taking platform floating on water surface
Auxiliary device for assembling hatch coaming of container ship
Ship segmented transportation combined bed and ship transportation method