硫氰酸胍 Guanidine thiocyanate... 湖南汇百侍生物科技有限公司

p1Src=//y2.yzimgs.com/uploads/507086/20181211-93532916.jpg?watermark/2/text/5rmW5Y2X5rGH55m-5L6N55Sf54mp56eR5oqA5pyJ6ZmQ5YWs5Y-4/font/5a6L5L2T/fontsize/500/fill/I0E3QTlBOA==/gravity/SouthEast"