Shenzhen City United States letter Analysis Technology Co., Ltd. is a Shenzhen branch of the United States letter detection technology Limited by Share Ltd, referred to as the United States letter of analysis. The analysis is a professional engaged in material analysis services third party laboratory analysis, material composition analysis, sample analysis, chemical formula test, detection of toxic and harmful substances and related testing services, services related to plastics, rubber, oil, ink, solder, surface treatment, adhesives, coatings, additives, flux, and metal material industry and so on.