Established in 2011, Shanghai Kingkun Industrial Co., Ltd. is located in Xinqiao Industrial Zone, Xinqiao Town, Songjiang District, Shanghai. Our company is a private enterprise specializing in cold and heat products. We devote ourselves to the development, manufacture, processing and sale of physical cooling and heating products. We mainly manufacture disposable instant ice packs, biological ice packs, cold therapy packs, hot therapy packs, cold & hot therapy packs, disposable instant hot packs, sheet-metal hot packs, multi-purpose cool mats for pets, cars, sofas and sleeping, disposable...