10 Inch Long 10 Pieces Glass Borosilicate Blowing Tubes 12 mm OD 2mm Thick Wa...

Worldity 20 Pcs 8 Inch Long Glass Borosilicate Blowing Tubes, Industrial Clear Glasses Tubes For Glass Blowing 12mm OD, 8mm ID, 2mm Thick Wall With 4

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6 Pcs Borosilicate Blowing Pipe, 4 Inches Long 12mm OD 2mm Thick Pure Glass, Hig