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| BOROSILICATE COLOR GLASS
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| Northstar - Alchemy - Precision - Momka - Roger Parramore - Boro Bars - Trautman Glass - Odds and Seconds - Millefiories |
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| GLASS GROUND JOINTS
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| All ground glass joints are made of Schott Duran tubing by Herbert Arnold Robotics in Germany to extremely precise tolerances. |
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