Shandong Mingtian Machinery Co., Ltd is a company specializing in the production of roots blower, roots vacuum pump, multistage and single-stage centrifugal fan. Company has technical personnel 38 people, technical engineer 15 people, hire domestic senior experts 3 people, has developed into one of the most advanced Roots blower production enterprise in China, is the most professional roots blower manufacturing enterprise and the most trusted roots blower trade partners in China. Company take science and technology's R&D as the enterprise's motivation of innovation and sustainable development, and continuously absorb the international advanced mechanical manufacturing technology and experience, increase investment in research and development to update the product design, keep up with industry trends, form a complete R&D system and process. Company has computer aided CAF technology, CAPP numerical control technology, information technology such as CNC auxiliary detection. In 2007, company passed the ISO9001 international quality system certification, awarded the Zhangqiu "consumer satisfied unit", Jinan "defend the contract value credit enterprise". In 2008, company produced "Shangu" brand series three-lobe roots blower was named highlights product of Chinese environmental protection machinery industry association, the registered trademark "Shangu" won the famous trademark in Shandong province. Company has 15 inventions and utility model patents, the company patented product roots type steam compressor is reserached, developed and designed based on traditional roots vacuum pump, solved the technical problem that in steam recycling case, filled the blank in this field in China. Utility model patent low noise case can effectively reduce the fan noise, about 5 dB lower than normal counterparts. At present, company has RSR series, MTR series, MJ intensive series, MTS series, roots vacuum pump series, high negative pressure roots vacuum pump series, multistage centrifugal series, single stage high speed centrifugal series, two-stage high pressure type series, ZQ steam compressor series nine big series in all, a total of more than 220 models, more than 430 specifications, products have small volume, large capacity, high pressure rise, low noise, stable and reliable operation and other characteristics, those products are widely used in pneumatic conveying, water treatment, aquaculture, petroleum, chemical industry, metallurgy, electric power, cement, food, coal preparation, vacuum packaging and other industries, meet the blower market demand of saving energy and reducing consumption, low noise and high performance.