GeneralElectricのインスタグラム(generalelectric) - 7月29日 01時17分

At #GE Global Research, a tube of almost pure quartz is heated to 3,000 degrees Fahrenheit. Glass workers can then shape the material to the desired form, creating custom laboratory glassware. Imagery by
@seenewphoto.

[BIHAKUEN]UVシールド(UVShield)

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