Cov khoom siv Sandwich Vaj Huam Sib Luag no siv cov tawv nqaij sab nrauv ua cov tub ntxhais, uas ua los ntawm cov iav fiber ntau txuas ntxiv (siab zog, siab rigidity thiab siab toughness) tov nrog thermoplastic resin. Tom qab ntawd sib xyaw nrog polypropylene (PP) honeycomb core los ntawm Nruam thermal lamination txheej txheem.