Four Shin, Fujian province famous trademark, Fujian province science and technology innovation small giant leading enterprise, Fujian province premium brand, Xiamen city premium brand, Xiamen city key support high-tech enterprises. A ye raan cɔl IoT, a ye raan cɔl IoT, a ye raan cɔl IoT, a ye raan cɔl IoT, a ye raan cɔl IoT, a ye raan cɔl IoT, a ye raan cɔl IoT, a ye raan cɔl IoT, a ye raan cɔl IoT, a ye raan cɔl IoT. Beijing Sichin Digital Technology Co., Ltd. (cɔl: Beijing Sichin), ye luui në luɔɔi de R & D, ye luui në luɔɔi de R & D, luɔɔi, ɣaac ku luui në luɔɔi de software, luɔɔi, ɣaac ku luui në luɔɔi de IoT, luui në luɔɔi de big data, cloud computing, mobile Internet ku jɔl ya teknolojii, ku jɔl ya luɔɔi de luɔɔi de luɔɔi de luɔɔi de luɔɔi de luɔɔi de luɔɔi de luɔɔi de luɔɔi de luɔɔi de luɔɔi de luɔɔi de luɔɔi de luɔɔi de luɔɔi de luɔɔi de luɔɔi de luɔɔi de luɔɔi de luɔɔi de luɔɔi