| 英文名称: | 28 kinds of metal mixed standard / aluminum, arsenic, boron, barium, beryllium, calcium, cadmium, cobalt, chromium, copper, iron, mercury, potassium, lithium, magnesium, manganese, molybdenum, sodium, nickel, lead, antimony, selenium, strontium, tin, titanium, thallium, vanadium, zinc |