BBT(China)Electronic Co.,Ltd is a leading manufacture of DC/DC converters & RS232/485/422 communication Interface converter & Surger-Lightning protect module & network filter/transformer in China .We have got certifications like as CE/ISO9001 and some patents. Our products’ designs conform to international standard, and are compatible to almost all famous brands of the world. They are mainly applied electric power, Telecom, Instruments and Meters, Medical equipments, Auto-electron, Safety protection , IP communication ,War industry etc. Our products have got the trust of many famous companies of the world. If you want to know more about our company and the latest product information, please visit our website or contact us directly. DC/DC converterRS232-RS485 converterSurger and LightingNetwork filter