Sigma-Aldrich
Hamilton® SlimTrode lab pH electrode
Haploperoside E
Hastelloy® B-3 alloy, Ni65Mo28.5Cr1.5Fe1.5(Co+Mn+W)3.5max
Hastelloy® C276-heat resisting alloy, Ni57Mo17Cr16FeWMn
Haynes® 230 alloy