With rapid development of the world economy ,Asia, especially the People's Republic of China,who advances by leaps and bounds ,will strongly influence the world economy in the future. 　　Wuhan Kawasaki Marine Machinery Co.,Ltd.(hereinafter called as WKM) is a joint venture between Kawasaki Heavy Industries,Ltd.(hereinafter called as KHI) and Wuhan Marine Machinery Plant(hereinafter called as WMMP).The main products are Kawasaki Side Thrusters and Kawasaki Steerable Thrusters(Rexpeller)adopting Kawasaki technology,know-how and production administration standards. 　　It may be expected that the marine propulsion unit which used in the transportation on the rivers and the sea has bright future in China .It also has bright future in the world along with the increasing need of the worl