"SSMMS" and "SSS" are simply described as (Spunbond x 2, Meltblown x 2 & Spunbond x 1 and Spunbond x 3). SSMMS is a 5 layered (100%) Polypropylene Nonwoven Fabric and SSS is 3 layered (100%) Polypropylene Nonwoven Fabric which are manufactured by using all the 5 beams of the machine to achieve the best quality which includes Fine Denier, Uniform structure, decent strength & elongation.