Doright. 

Doright Co.,Ltd., founded in 2004 and headquartered in Qingdao, China, is an enterprise specializing in the design, research and development, manufacturing, inspection, sales, and servicing of energy-saving and environmental protection equipment. The company's comprehensive product line features various energy-efficient heat exchange systems, such as advanced heat exchangers, high-temperature air preheaters, waste heat recovery boilers, rotary dryers, and innovative ceramic fiber fire boxes and quench boilers. It also produces industrial process components, including cryogenic pin-tube heat exchangers, reactors, atmospheric pressure vessels, storage tanks, and tower internals. For powder and exhaust gas environmental management, Doright offers equipment like harrow dryers, carbon black feeders, and a range of pelletizers (wet, dry, and pigment), along with specialized pin tube heat exchangers and services for pressure pipeline installation and maintenance. Beyond its product offerings, Doright delivers integrated solutions for clean combustion, heat transfer, and energy optimization to clients in the chemical, energy, metallurgy, and solid waste treatment industries. The company's international operations span the United States, Europe, Oceania, Africa, and various regions across Asia.