Circuit Marking (HK) Limited is a professional high-tech laptop battery enterprise, established in 2008, and is a specialist in researching, developing and manufacturing OEM batteries, adapters and other laptop accessories. With a high-tech innovative technical & engineering team, strong, young and energetic overseas sales team and the most advanced production line, CIRCUIT MARKETING is fast growing and has built up long-term and good partnership with customers from various countries all over the world. Circuit marketing will devote ourselves to your satisfaction with our good quality products and service.