Engaging in the research, design, manufacturing and marketing of energy saving production ,Guangzhou Diron Electric & Machine Co., Ltd is a professional energy saving productions company . In 2006, Guangzhou Diron Electric & Machine Co., Ltd was established. Our main product are flat plate solar water heater ,vaccum tube solar water heater ,air source heat pump ,swimming source heat pump.We have obtained ISO ,CE certificate . With over 5 years developing, diron is becoming more and more popular. Competitive Advantages: 1, Reliable quality: To realize our company standards, Diron insists upon the quality of all its products. From design to technology and materials, to production, logistics and customer support. Top quality is one of the most important achievements of Diron. 2, High availability and on-time delivery: You are assured of fast delivery and efficient service, A timely