Shanghai Kehan Industrial Co.,Ltd., located in Shanghai, China, is a high-tech enterprise specialized in developing, manufacturing and distributing "Rainbow" Power Surge Protective Device(SPD) and Signal Surge Protective Device. We also provide OEM/ODM services to meet the needs of different customers. Kehan has passed ISO 9001??000(Quality Management System) and ISO 14001??004(Environmental Management system) in 2008, and we're applying UL certificates at present.

Our company has built mutual-trust relationship with other enterprises in wind-power, electrics, water treatment &  communications industry and win good reputation from the buying public by excellent quality, reasonable price and perfect service.