... Porosity84%Note1, The P84 bag filter fabric finishing process for this product include thermal setting, singeing, calendering.2,The ... can be 2.65m.we can produce 7000 m2 at least for one day.Why choose COSTIN P84 bag filter ?1 ... Productsneedle punched nonwoven,RPET stitchboned nonwoven for shopping bags,polyester nonwoven for mattress,polyester nonwoven for housetop waterproof,nylon nonwoven lining, ...