(美元/吨) 苯乙烯 价差 纯苯
H1 Dec: 1639.00 200.00 1439.00
H2 Dec: 1636.00 198.00 1438.00
H1 Jan: 1631.00 196.00 1435.00
H2 Jan: 1625.00 214.00 1411.00
H1 Feb: 1388.00
(关键字：苯乙烯/纯苯)