如果企业客服不在线,也可拨打400电话联系。或者发布求购信息
CD-5气相毛细管色谱柱
STIRRING THERMOMETERS, SOLID STEM, DIFICO GRADUATION, -10 + 50|C, DIA. 6-7MM, L LENGTH: 200 MM
一溴乙酸,1000ng/ul于叔丁基甲醚 标准品