Specifications: 1.Blended polyester anti-static needle punched felt During the production, we proportionally add electric conduction or antic- static fiber to needle punched felt. It is prevalent in the world at present. It generally adopts the carbon fiber or the stainless steel fiber. material : Polyester fiber + anti-static filter 2. Basic scrim anti-static needle punched felt It adopts the anti-static woven fabric for scrim. While weaving scrim, we add the conductive fiber in the warp direction to make the base scrim enable anti-static function. After forming needle punched felts, this function that can be extended to the felt. Our factory generally adopts the conductive fiber of stainless steel. This type is economical. material : Polyester + anti-static scrim 3, All of the fabric can be made for different size of filter bags.