Min. Order Reference FOB Price
20 Pieces US$20.00-95.00 / Piece
Product Description
Helium is a kind of chemical element, chemical symbol is He, its atomic number is 2, is a kind of colorless, inert gas, discharging dark yellow light.At room temperature, it is an extremely light colorless, odorless, tasteless monatomic gas.Helium is the hardest of all gases to liquefy, the only ...