17种元素混标（Al,Ba,Pb,Ca,Cd,Cr,Co,Fe,K,Cu,Li,Mg,Mn,Na,Ni,V,Zn）
17-element mixed standard (Al, Ba, Pb, Ca, Cd, Cr, Co, Fe, K, Cu, Li, Mg, Mn, Na, Ni, V, Zn)
-
存储：常温,避光
