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What is a special glass?
2009-05-22 We all know that glass is a silica glass, sodium silicate, calcium silicate mixture, however, special glass for this?May be a lot of glass do not know what is special glass, but this is normal, because the conceptual things that are not necessarily going to understand very clearly the non-fact, the special glass is pure silica, or glass added lead, boron, consisting of elements such as rubidium.
