| 英文名称: | 32 kinds of metal elements mixed standard (silver, aluminum, arsenic, boron, barium, beryllium, bismuth, calcium, cadmium, cobalt, chromium, copper, iron, potassium, lithium, magnesium, manganese, molybdenum, sodium, nickel, phosphorus, lead, antimony, selenium, silicon, tin, strontium, titanium, thallium, vanadium, zinc, zirconium) |