Vbolt Mechanical Manufacturing has been well known as a manufacturer to supply vacuum distillation plant, molecular distillation plant, pyrolysis oil distillation equipment and multifunctional oil purification machine in Chongqing city of China since the beginning of 2007. In next years, the chief engineers team join hands with Turkish mechanical engineers team to improve the traditional distillation technology to proprietary membrane distillation technology and further developed into Chongqing Vbolt Machinery Manufacturing Co., Ltd(name VBOLT) and set up own professional import and export team. Up to now, we have obtained authoritative patents for membrane distillation technology, oil pyrolysis technology, oil purification technology. We own factory more than 5000 square meters and more than 50 employees. Being certified with ISO 9000:2000 and CE certificates, VBOLT researched VBT-DD advanced membrane distillation machine has been able to recycle used engine oil and other waste lubricant, tire pyrolysis oil and plastic pyrolysis oil into high quality diesel which can be used as fuel directly. It synthesized the advantages of traditional chemical treatment and distillation, and solved the problems as easy oxidizing and changing color. And it's not as much cost as old generation molecular distillation. So it's proved as the lowest investment cost, faster return and energy efficient technology in the industry of used oil recycling. And it acquires a very high evaluation from Southeast Asia, Africa, South America, Europe etc.