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Cover Glass ( Premium Quality) Features: Made of colourless borosilicate glass (D 263) with an optimum hydrolytic resistance; This ultra thin glass is produced solely by only two special glass companies world-wide and by patented down-draw-technology working with very expensive platinum orifices for getting blister- and striae-free glass. The "ultra-thin glass foils" are steadily controlled by the Quality Control Systems of our supplier in terms of the chemical composition as well as glass thickness and waviness; Through our consistent developments and automatisation of the process- and cutting-technology, we have reached the optimum dimensional accuracy; Our coverglass is manufactured in accordance to the international standard ISO 8255/1 and is ready to use; In order to prevent sticking, caused by stacking flat coverglass, we use very fine glass particles to powder the surfaces.
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