Trafotek (Finland) is quality supplier of inductive components, as shown by its excellent references from the power electronics and ship building industries worldwide.

Based on the analysis of the present situation in the world shipbuilding industry and the comparison of among China, Japan and Korea, the gap and problems in the shipbuilding technology are found out.

With the increase of the tonnage and power of ocean-going ship, more and more attentions are paid to the match among vessel, main engine and propeller by shipping and shipbuilding world.