Adopt symmetry of spiral weave, operate steadily, walk partial and relatively little.
Use at present more to use in to retreat stove, and the dryness of different article at industry glass ware.

Featured as easy to rotate, steady, resistant to high temperatureand erosion.
Well used in food, pharmacy, machinery, printing, drinking and other industries.

Compounded Balanced Bunches of Pieces

Featured as resistant to high temperature and erodent, as ventilate and working steadily.
Used in food, pharmacy, dying, chemical, glasses and radio industry.