PPR aluminium-yas composite yeeb nkab yog abbreviated li txhuas-yas yeeb nkab (PAP), uas yog ua los ntawm polyethylene (PE) los yog cross-linked polyethylene (PEX) raws li lub puab thiab txheej txheej. Cov nplaum nplaum yog khi rau cov txheej yas, thiab cov yeeb nkab yog tsim los ntawm ib zaug molding los yog ob-txheej molding txheej txheem. Txij li xyoo 1992, qhov nruab nrab txhua xyoo kev loj hlob ntawm txhuas-yas kav hauv Europe tau tshaj 20 feem pua. Piv rau lwm cov kav dej siv hauv cov kav dej, nws txoj kev loj hlob yog siab tshaj.
