Shandong Geniuston Construction Machinery Co.,Ltd is located in Yantai High-tech Industrial Development Zone. The company covers an area of 100 mu, workshop is almost 50,000 square meters，Of these, 21,000 square meters have been built and 27,000 square meters have been constructed. The company is a high-tech company which is specializes in the researching, producing, sale and service of the full-enclosed concrete mixer truck. The rotary sealed fully enclosed concrete mixer truck, the world original rotation sealing patent technique （National Invention Patent：201010532751X；International PCT/CN2011/001752）,effectively solve a series of problems related to the traditional mixer truck: bad heat preservation and moisture retention performance, big slump loss, poor safety performance, concrete leakage, etc. For the past 9 years, the mixer is working for China Railway, China Railway Construction and CCCC.