每經AI快訊(xun)，4月21日，國內商品期(qi)市午盤(pan)多數下跌(die)(die)(die)(die)(die)(die)，黑色系領跌(die)(die)(die)(die)(die)(die)，鐵礦石跌(die)(die)(die)(die)(die)(die)超(chao)(chao)(chao)(chao)4%，錳硅跌(die)(die)(die)(die)(die)(die)逾3%，焦煤跌(die)(die)(die)(die)(die)(die)近3%；原(yuan)油(you)(you)系走低(di)(di)，低(di)(di)硫燃料油(you)(you)跌(die)(die)(die)(die)(die)(die)超(chao)(chao)(chao)(chao)3%，原(yuan)油(you)(you)跌(die)(die)(die)(die)(die)(die)約(yue)2.5%；油(you)(you)脂油(you)(you)料普跌(die)(die)(die)(die)(die)(die)，豆油(you)(you)跌(die)(die)(die)(die)(die)(die)超(chao)(chao)(chao)(chao)3%，棕(zong)櫚油(you)(you)跌(die)(die)(die)(die)(die)(die)近3%；基本金屬走低(di)(di)，滬(hu)錫跌(die)(die)(die)(die)(die)(die)近3%，滬(hu)鎳跌(die)(die)(die)(die)(die)(die)超(chao)(chao)(chao)(chao)2%；白糖漲(zhang)超(chao)(chao)(chao)(chao)2%，創2017年3月以來新(xin)高；兩醇強勢，乙二醇漲(zhang)近2%，甲醇漲(zhang)近1%。