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Chemistry, how to cast the mold of a coin

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Product Description

Casting the mold of a coin (Thaler) with a mixture of gypsum and water (CaSO4 + H2O)

JPG Raster, 4.77 MB

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4K Video, Blogger JPEG, Extended (for merchandise), Extended JPEG, Extended Vector, Extended Video, Full Size ( XLarge – high definition), Full Size JPEG, Full Size Vector, HD Video, Web-Blogger (700 pixels larger size)