Carbon Coil lamps
Glass blowing instruction
manual tube drawing
float glass drilling
Edison lamp
sealing machine HID
tipping TL lamp
quartz drawing
taking a break
GLS Bulbchain
practical hands-on training
training participants
grouppicture participants
getting a feeling for viscosity
GTA
certicfication
congrats
glass instrument making
practical hands-on training
glass instrument making
grouppicture participants
grouppicture participants
diploma
diploma
Carbon Coil production
HID lamp MHN
CSX lamp
Carbon Coil sealing process
bridge
practical hands-on training
Compact Source Xe lamps
tube drawing
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