… (monosilicate, metasilicate, polysilicate, etc.), and their degree of hydration and their solubility vary with the method of manufacture and the degree of purity. Occur in colourless crystals or in powder, in vitreous masses …
… 7003.20 - Wired sheets 7003.30 - Profiles This heading covers all types of cast glass and rolled glass provided it … all premises where light is required but with varying degrees of obscuration. Owing to the nature of the … by further processing. As already stated, this heading covers only cast glass and rolled glass. In the casting …
