Double-One Science and Technology Co., Ltd (Stock ticker: 300690) is a state-level new and high technology enterprise integrated with designing, research and develpment, production, sales and service of advanced composite materials. The products fall into five branches: non-metal modelling, composite material components for eolian power of new energy resources, car lightweight parts, advanced compound material products and tourist ships. On August 8, 2017 the company is officialy listed in growht enterprise board. 

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