Guangfa Futures released a daily review on September 19th, stating that precious metals are waiting for the Federal Reserve's decision, and the US dollar index has fallen, while precious metals have slightly rebounded; Gold rebounded to around $1950 in the short term, while Shanghai gold fluctuated between 460 and 470 yuan; Iron ore is recommended to test the empty space every high, and coal coke should be pulled back and bullish; Copper interval operation, with main force reference of 68000-70000 yuan/ton; The idea of high volatility in crude oil is based on the oil distribution reference of 93-96 US dollars.