| Beijing XinXingHaiDa Automatic Control Instrumentation Ltd. is the first co***ny to develop and produce mechanically reformatted-pointer-type temperature and humidity instrumentation and Temperature-sensitive humidity-sensitive components, and also one of the biggest co***nies that produce Hygro-Thermometer&©|12290;After tested by several authoritative department, our products meet the latest national standard and the indicators of similar foreign products&©|12290;our products what selected by the Chinese Light Quality Assurance Center to be one of the ten best quality brands&©|12290;we were the first to develop the large pointer-type Hygro-Thermometer&©|65292;which is widely used in large conference rooms&©|65292;restaurants, shopping malls, railway stations, Square and other public places.
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