Sigma-Aldrich
Hastelloy® C276-heat resisting alloy, Ni57Mo17Cr16FeWMn
Heidolph stirrer shaft guard
Hellma® absorption cuvettes, semi Micro
Hellma® 半微量吸收比色皿
Hellma® absorption cuvettes, ultra Micro
Hellma® 超微量吸收比色皿
Hellma® cylindrical absorption cuvettes
Hellma® fluorescence cuvettes, standard cells, Macro
Hellma® 荧光比色皿,大标准吸收池
Hellma® liquid calibration standards