Sigma-Aldrich
Hastealloy® c-22
Hastelloy® X alloy, Ni49.5Cr22Fe18Mo9Co1W
Havar®-high-strength non-magnetic alloy, Co42.5Cr20Ni13FeWMoMn
Heidolph stirrer fastening clamp
Hellma® absorption cuvettes, standard cells, ultra Micro
Hellma® 吸收比色皿,超微量标准吸收池
Heptyl Ether