| 英文名称: | 29 kinds of metal mixed standard / aluminum, arsenic, boron, barium, beryllium, bismuth, calcium, cadmium, cobalt, chromium, copper, iron, gallium, mercury, potassium, lithium, magnesium, manganese, sodium, nickel, phosphorus, lead, antimony, tin, strontium, titanium, thallium, vanadium, zinc |