... layout into a network, through acupuncture and other processes in the different fibers so intertwined, tangled with each ... . 1: sub-felt cloth material: polyester staple fiber and polypropylene staple fiber. 2: Felt cloth color: red, blue, green, yellow, purple, brown and ... be used as polishing material. The products are widely used in mechanical, electrical, chemical, cement, metallurgy, oil field ...