Welcome to learn Heng Yuan and we sincerely hope that our products would give you help. Shangdong Hengyuan Temperature-controlled Equipment Co.,Ltd, located in Qingzhou economic development zone, constantly strives to research and develop the national green energy-saving products. Our company, as a high-tech enterprise which integates the professional design, manufacturing, installation, sales and after-services, has a strong production capacity and technical force. The products of our company are remarkable for numerous in variety, complete in specifications, reliable quality and good reputation, the main products include: ventilation cooling system such as poultrdy fan, negative pressure fan,circulation fan, unpowered roof fan, cooling humidification system such as cooling pad, heating system such as automatic fuel, coal, gas, electric heater, induced draft fan and other products

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