Sino-U.S.Joint Venture Shandong SEM machinery Co., Ltd (A Caterpillar invested company) is a key wheel loader manufacturer in China.It has introduced highly-advanced developing,manufacturing and management technology from Caterpillar company.Up now, SEM wheel loader have formed D,E,F,G,H series,ZL16,ZL20,ZL30,ZL40,ZL50,ZL60 six model, more 70 products.Particularly,G,H series wheel loader adopt humanity, security, technology of protect environment.Use integration of machinery,electric & hydraulic technology. The quality have reach the advanced level of world.