KDJ index, also known as stochastics, is a novel and practical technical analysis index. It was first used in the analysis of futures market, and then widely used in the short-term trend analysis of stock market. It is one of the most commonly used technical analysis tools in futures and stock markets.

Tongda OA is called OfficeAnywhere. Is a software that introduces the comprehensive strength of Tongda Information Branch. Tongda information branch belongs to the world's top 500 enterprises. China Ordnance Industry Information Center belongs to China Ordnance Industry Group. China Ordnance Industry Group, formerly the Ministry of Ordnance Industry, is now a super-large state-owned enterprise directly under the central government and one of the top ten national defense enterprises.