Looking at the K-line chart of gold futures, Hengxin Precious Metals can use the following steps: 1. Open Hengxin Precious Metals Trading Platform or other financial data platforms, and log in the account. 2. Find the relevant target varieties of gold futures on the platform and select the corresponding K-line chart. 3. Choose a suitable time period to observe the K-line chart, such as daily line, weekly line and monthly line. 4. Analyze various elements on the K-line chart, including opening price, closing price, highest price and lowest price, and combine with corresponding analysis tools, such as moving average, support level and resistance level. 5. Observe the price trend and chart form on the K-line chart to understand the price fluctuation, trend and some technical signals of gold futures. 6. With reference to other relevant market factors, such as news and economic data, analyze and judge the K-line chart. It should be noted that the K-line chart is only a reference tool, and investors should also combine other technologies and fundamental analysis to make more accurate decisions. At the same time, the financial market is risky, and investors should fully understand the risk tolerance of the market and individuals before trading.