Quote:
Originally Posted by jb92563
In General Glass hardness ranges from 4.5-7.5 but steel is in the 4-4.5 range.
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Looking at about the same figures as yours here, surprising. Never worked with glass, learning everyday.
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'97 Boxster base model 2.5L, Guards Red/Tan leather, with a new but old Alpine am/fm radio.
Last edited by Nine8Six; 07-21-2016 at 01:24 PM.
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