Our products include Pharmaceutical neutral glass tube, tubular vial, moulded glass vial, ampoule, rubber stoppers and tear-off caps, Borosilicate clear and colored glass tube and rod, glass cylinder and borofloat glass sheet, and the Lead glass tube, lead free glass tube. Property of Lead Free Glass Tube Item Techinical parameter Lead free tubing lead free (20-300ºC)×10-7/ºC 93±2 Soften point 675±10ºC Annealing point 485±10ºC Heat stability ≥120ºC When the Mass resistance is 100MΩ.cm,temperature of TK-100 ≥240 Density 2.63±0.05 Anti-water Class III