1.国内聚乙烯醇市场综述单位：元/吨聚乙烯醇产品型号03月09日03月08日涨跌环比1799#20800-2180020800-218000/00%2699#21600-2280021600-228000/00%1788#22000-2280022000-228000/00%2499#21300-2210021300-221000/00%2488#22700