TopTech Cutting power sources TopTech JCH400A-Mechanized High Definition plasma power sources Import European main parts, TopTech power sources have the world first class cutting quality, which can be the same performance as the world big brands'. TopTech JCH series IGBT air plasma power sources had been tested in the market more than 5 years. Company Introduction Beijing TopTech Technology Co., Ltd. was founded in Beijing, the capital and main transportation city in China. With more than 10 years experience in welding and cutting industry, we had R&D our advanced welding and cutting equipment. Mature teams, included sales team, marketing team, production team and after-service team, supply professional service for customers. Strictly follow ISO 9001:2000 world quality management system.