Amitronics Private Limited supplies Glass Rods / Bead Glass. Amitronics Private Limited is an ISO 16949: 2002 and ISO 9001:2000 certified company. Glass Rods / Bead Glass are used to hold and insulate the grids in the position at a high voltage. Glass Rods / Bead Glass is made from glass powder with very low co-efficient of expansion of approximately 27 X10-7degree centigrade. These are available in variety of colors. It is available in the range from 8mm to 150 mm long.