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11日03月09日涨跌环比1799#23000-2380020800-21800+2200/+2000+9.86%2699#22800-2350021600-22800+800/+700+4.28%1788#23500-2400022000-22800+1500/+1200+6.03%2499#223