Bohai Industrial Wire Belt Co offer polyester spiral wire belt of filtration and drying application. Polyester spiral dryer belt also used in papermaking producing for paper desiccation, water treatment, sludge dewatering. Polyester spiral press-filter belt is made of polyester spiral dryer fabric which is filled with stuff to reduce the air permeation and to intensive the opening, hence to reduce the material loss from the mesh opening. Polyester spiral filter screen is mainly used in sludge desiccation, paper pulp washing, coal washing, chemicals industrial.