PPR yeeb nkab thiab fittings

Xaiv cov khoom haum! PPR kav yog kub-resistant thiab siab-resistant, aluminium-yas kav yog cov pa oxygen-resistant thiab yooj yim rau khoov, tooj dag li qub yog xeb-pov thawj thiab kaw heev, Cov ntsuas cua sov yog qhov tseeb thiab txuag hluav taws xob, kev ruaj ntseg li qub…