hejiang Ruian Hongchang Industry Control Equipment CO.,LTD, established in 2005, is professional company of Machinery Electrical Equipments production, scientific research, and sales. Hongchang Company focuses on Industrial automation electrical appliances in the application of plastic machinery for many years, and obtained a lot of professional and technical personnel, professional electric test equipments, automatic electronic components testing instruments and all kinds of special electronic testing equipments, which had provided security for product research, the testing performance and investments. Hongchang Company independently developed HW series Corona Treatment, adopting PDM high voltage power supply technology with advanced international standards, has gained very good reputation from many customers. Our products cover high, medium and low different grades, quality price ratio compared to other companies with the industry has unparalleled advantages