we are specialed in manufacture hard glass bulbs,lighting glass shells and lighting glass tubings,like flare tubing,exhaust tubing.
Exhaust tubing: out diameter from 2.5mm to 6mm
Flare tubing: out diameter from 6mm to 26mm
PHYSICAL DATA:
linear expansion coefficient of thermal expansion: 40.5×10-7/℃±1.0×10-7/℃
softening temperature: 790℃±10℃
annealing temperature: 555℃±10℃
temperature ℃ Tk-100 with volume resistivity (100M ΩCM) ≥235℃
ensity: 2.26g/cm³±0.015 g/cm³
water resistance: first class