scientific glassblowing training - pulling a point -10mm borosilicate tubing
select 10mm tubing , attach a handle and straighten, gather behind the join and pull a point.
burn through in a cooler part of the flame to avoid boiling the glass.
Видео scientific glassblowing training - pulling a point -10mm borosilicate tubing канала johntheglass
burn through in a cooler part of the flame to avoid boiling the glass.
Видео scientific glassblowing training - pulling a point -10mm borosilicate tubing канала johntheglass
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