7H-benzo[4,5]thieno[2,3-b]carbazole

Beijing YunjiTechnology Co., Ltd.. was established in April 2015 with a registered capital of 20 million yuan. It is located in the petrochemical new material industry base in Fangshan district, Beijing. Covers an area of more than 40 acres, the existing staff with more than 120 people, college education accounted for more than 90%. It’s a professional engaged in high-end display LCD monomer materials and OLED related materials independent research and development, production, sales and service of high-tech enterprises. Our factory is known as Beijing Yanhua Jilian Opto-Electronic Technology Co., Ltd. Which is the subsidiary company of Beijing Yunji Technology Co., Ltd. Now. we are supposed to use Yunji Technology Co., Ltd based accounts for overseas orders.