Sigma|α-乳糖 α-lactose 进口试剂采购网GIBCO主页

p1Src=//y2.yzimgs.com/uploads/469100/20161211-122126531.jpg?watermark/2/text/5LiK5rW35ouc5Yqb55Sf54mp6IOO54mb6KGA5riF5YWs5Y-4/font/5a6L5L2T/fontsize/400/fill/I0E3QTlBOA==/gravity/SouthEast