Material:Polypropylene Structure:PP Melt-jet filter cartridge Application:pleated filter cartridge DescriptionPolypropylene,as the raw marerial,non-poisonous testeless,is melt-sprayed,extruded,stretched and formed into tube-like core whichhas the fuatures of pressure-proof,corrosion-resistance,high pression and large flowrate.SpecificationsLengh10",20",30",40"DiameterOuter diameter 65 mm;Inner ...