Min. Order Reference FOB Price
1 Square Meter US$55.00-69.00 / Square Meter
Product Description
Product Description Helium, the least reactive element. Helium is normally a colorless, odorless gas and is the only substance that cannot solidify at standard atmospheric pressure. Specification: Specification Company Standard He ≥ 99.999% N2 ≤ 2.0 ppm O2+AR ≤ 1.0 ppm H2 ...