Guoli has been dedicated to the R&D, design and manufacturing of plate heat exchanger since its foundation. Guoli has the most advanced production and test equipment like high vacuum brazing furnace, high pressure hydraulic machine, full automatic ultrasonic cleaning machine, vacuum helium mass-spectrometer, CNC machining center, precision-machined tool, thermal performance test bench, pressure and temperature alternating test bed. Besides, we also have a professional team of mechatronics control, integrated electromechanical control, computer software, 3D dimension design, heat transfer research. They have rich manufacturing experience and technical ability. Our R&D center has proprietary intellectual property rights with many patents for invention. With all these years' sophisticated technology, advanced experience, independent R&D and scientific management, Guoli forged the high-end energy-saving heat exchanger. Since the products were developed, we had managed to take the first share of the market with our superb quality and the absolute advantage of pricing. Then Guoli became the well-known brand in the market of plate heat exchanger.