Gongtao company mainly produce alumina tubes from Sillimatin 60 Type C 530, Alsint 99.7 Type C 799 and Pythagoras Type C 610, all complying with DIN VDE 0335.

They are used to provide electrical insulation to the couple which is used for sensing the temperature inside the furnace. These are single, twin, Four hole bore. These are generally used in small lengths of 25mm. However longer lengths are sometime preferred in critical applications

Our items are various and exported to many countries. Welcome to contact us!