Aristech is a brand belonging to the Taiwanese company Lien Sheng. Lien Sheng Mechanical & Electrical Co., Ltd. Ltd was founded in June 1988. The main products of this plant are EDM (Electrical Discharge Machine) EDM machines, as well as peripheral automatic equipment. The company has its own brand Aristech, which is known at the moment all over the world. We note that Lien Sheng has several patents for inventions in the field of electro-erosion equipment, and machines from this manufacturer meet the highest world standards. In 1995 the company received the European safety certificate CE, and in 1998 – the certificate of compliance with ISO 9002 (ISO certificate 9001 was received in 2001). Products manufactured under the Aristech brand have long enjoyed the well-deserved reputation of reliable professional equipment and have been repeatedly noted by experts at international exhibitions as the best in their class. In addition to high-quality professional equipment, Lien Sheng specialists also provide excellent service to their customers.