甲苯/异辛烷中22种有机氯混标 广州信谱徕科学仪器有限公司

p1Src=//y2.yzimgs.com/uploads/425033/202264-9595798.png?watermark/2/text/d3d3LnhwbC1ocGxjLmNvbQ==/font/5a6L5L2T/fontsize/300/fill/I0E3QTlBOA==/gravity/SouthEast"

aa