Raws li qhov zoo ntawm ifan, ifanplus siv cov ntaub ntawv ntau dua, hnyav dua thiab zoo dua. PPR yeeb nkab thiab fittings, tooj liab pob li qub, tooj liab fittings, pex raj, thiab lwm yam. Cov ntaub ntawv raw yog tib yam, thiab tsis muaj qhov sib txawv ntawm ifan thiab ifanplus. Los ntawm qhov ntim ntawm qhov pom, ifanplus feem ntau ntim rau hauv ib lub hnab opp, nrog cov khoom zoo thiab zoo heev, nws yog ntau tus neeg siv khoom xaiv thawj. Peb tuaj yeem ua tau raws li qhov xav tau ntawm cov neeg siv khoom ntawm ntau theem, Txawm hais tias nws yog tus nqi qis lossis qhov zoo, peb tuaj yeem ua tau raws li cov neeg siv khoom xav tau, nrog cov khoom muag loj thiab xa khoom sai, txais tos muab qhov kev txiav txim rau kev yuav khoom.
