... lamp, stage lamp, thermocouple, printer lamp, sleeve for water treatment lamp, quartz utensils and pipes, etc.1.Chemical Compositions unit ... %Air line Length Air line Width6≤φ12No limitationTransparent quartz glass tubes are divided into Grade I, II ... length3%LengthDeviation±1Currently, different Out Diameter from 2mm to 500mm is our production ability transparent quartz glass tube,slica tube ...