伦敦金属交易所：下调伦铜、伦锡、伦锌保证金

array(1) { [393843]=> array(2) { [2]=> array(4) { [0]=> string(21) "伦敦金属交易所" [1]=> string(6) "LME铜" [2]=> string(6) "LME锡" [3]=> string(6) "LME锌" } [4]=> array(1) { [0]=> string(19) "同花顺7x24快讯" } } }