The mica tube is a hard tube form insulate material which is formed by using mica sheet, muscovite paper or phlogopite paper fixed with glue (by using mica paper glued on single side reinforce material), and processed by roll form.

Mica tube is of 10-- 700mm length, the internal diameter is 10-- 300mm . The size of Mica tube is over that is to
be determined according to the contract or the blue-print supplied by both parties.