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
DURAN? Volumetric flask,blue graduation, class A, USP conformity, individual certificate, with one graduation mark, polyethylene stopper, NS 19/26, 50
ICP 内标混合溶液 (6种元素), 5% Nitric acid
2,3,5,6-四甲基吡嗪