Download a master Boyi, select the K-line of Shanghai Futures Exchange and Shanghai Copper Contract, and press the left and right arrow keys like stock trading to clearly see the price trend of Shanghai Copper in recent years.

Www.lzqh.net.cn chooses Software Download-Boyi Master Download-Installation-Login-Dalian Futures-Soybean Oil (see the contract with the largest volume and position).

F5 looks at the K line, and the left and right arrows can show the price trend in recent years, which is very clear.

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