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bread pure germanium grain

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    Pure Germanium Grain Bread Shape

    Factory direct supply SGS ≥99.999% germanium 2.5mm to 10mm for bread shape geramanium grain. High purity of germanium is better for keep body health balance; Every pieces of germanium grain surface are multi-layer polished and polished, high smooth and high brightness; High quality of gremanium products and good service , achieve cooperation and win-win

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