郑商所：调整纯碱期货2301合约交易保证金标准

array(1) { [460965]=> array(2) { [2]=> array(4) { [0]=> string(9) "郑商所" [1]=> string(12) "基础化学" [2]=> string(12) "轻质纯碱" [3]=> string(15) "合约保证金" } [4]=> array(1) { [0]=> string(19) "同花顺7x24快讯" } } }