The main material is the mineral cotton of high quality. It does not contain any asbestos and cannot make wool dust of needle shape which may enter into human body through breath, so it will do no harm to human body.

The using of compound fiber and surface coating of net structure will greatly improve the ability of impact and deformation resistant of the mineral wool board.

The expanded prelite,which has the fireproofing and heat insulation performance,is added to decrease the costs of refrgeration and heating.It meets the need of energy saving and consume decreasing.