Shandong yaoguo thermal technology co., ltd. specializes in the production of glass vacuum collector tube.Professional production lines and technical personnel, for the world to provide high-quality solar vacuum tube.So far, we have formed a complete research, development and sales system.Adopting advanced Cu/ ss-n /AL absorption coating, it has good heat-collecting performance.Products sold at home and abroad, including India, Vietnam, the United States, Germany, Poland, Pakistan, Singapore, the Middle East, Europe and southeast Asia.The company has passed ISO9001 system certification.The...