Doing Holdings Co., LTD is a leading manufacturer specialized in continuous pyrolysis plant, batch pyrolysis plant, waste oil to diesel plant and biomass carbonization plant ranging from Research & Development, Design, Manufacturing to Installation & Commissioning. It is one of the 5 members to make up DOING GROUP and others areJiaozuo DOING Mechanical Equipment Co., Ltd, Xinxiang DOING Renewable Energy Equipment Co.,ltd, Henan DOING Oil & Fat Engineering Technology Co. ,ltd and Nigeria Co. ,ltd.Our products include:Waste tire/plastic/oil sludge/solid waste pyrolysis plantWaste/crude oil distillation machineE-waste/Solar panel/lithium battery recycling machineBiomass carbonization machineStarch flour processing machineCooking oil processing machineDOING GROUP focus on the international market, and products are 100% exported. We have an international trade team with 200+ members, senior process engineers, senior mechanical design engineers and 100 workers for production. Our products have been exported to more than 80 countries and regions such as The USA, Brazil, Russia, Indonesia, France, England, Australia, Chile, South Africa, Italy, Macedonia, Turkey, Egypt, Mexico, Ecuador, Haiti, Congo, Uganda, Nigeria, India, Pakistan, Thailand, Malaysia, Bangladesh etc.With factory area more than 20000 square meters and equipped with digital control cutting machine, auto-welding machine, large rolling machine, p&c lab for quality control and X-ray detection room etc, DOING GROUP is capable of modern production.The headquarters of DOING GROUP is located in Zhengzhou the capital city of Henan province, where it takes 30 minutes' driving from the Xinzheng International Airport(CGO) and only 20 minutes' driving from east high-speed railway station, and the transportation is very convenient. Also we specially prepare cars for customers' pick up.DOING GROUP welcome your visit!