Established in 2011, Shanghai Kingkun industrial co.,Ltd is located in Xinqiao Industrial Park, Songjiang District, Shanghai. It is a private enterprise, specializes in cold and heat products, and devotes ourself to the R&D, manufacture, processing and sales of products on physical cooling and heating. We mainly manufacture disposable instant ice pack, biological ice pack, cold therapy pack, hot therapy pack, cold&hot therapy pack, disposable instant hot pack, sheet-metal hot pack, ...