production and distribution of germanium, indium, and gallium products (nearly 100 categories); high-purity hydrogen; electronic grade high-purity trichlorosilane; and polishing and metallic-membrane plating of silicon chip, glass, and machinery, etc. In particular, we have recently developed 13 inch germanium single crystal, various mono-crystalline germanium slices, allotypic germanium granule, and large size infrared coating germanium pellet, etc.

Nanjing Germanium Co., Ltd.
Nanjing Jiangsu
China

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