通威股份：拟签订不低于509亿元多晶硅产品销售合同

array(1) { [401062]=> array(2) { [2]=> array(3) { [0]=> string(9) "多晶硅" [1]=> string(12) "重大合同" [2]=> string(12) "通威股份" } [4]=> array(1) { [0]=> string(19) "同花顺7x24快讯" } } }