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50 years of Electric Melting with SORG and HEINZ-GLAS - GlassOnline.com - The World's Leading Glass Industry Website
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50 years of Electric Melting with SORG and HEINZ-GLAS - GlassOnline.com - The World's Leading Glass Industry Website
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SORG Technology: Energy Savings and Trouble-Free Operation for Wiegand-Glas | Glass Worldwide Magazine
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