... PA yellow Hot Melt Glue Granule for filters, paper,metals; With high bonding strength, good flexibility, thermal stability Hot Melt Glue Granule ... It is mainly for both of machine oil and air filters; It has high bonding strength, good flexibility, thermal stability ... Yellow PA Hot Melt Glue Granule for both machine oil and air filters, paper,metals; With high bonding strength, good flexibility