** 1. Dab tsi ob hom yeeb nkab feem ntau siv los nqa nkev? **
Ob qho yeeb nkab feem ntau siv los nqa cov yeeb nkab uas yog cov yeeb nkab steel thiab polyethylene (PE) Daj HDPE (siab {}} ntom polyethylene).
** 2. Dab tsi ntawm cov yeeb nkab siv rau LPG? **
Liquefied roj av (LPG) cov tshuab feem ntau siv copper tubing lossis steel yeeb nkab. Lub tooj liab tubing yuav tsum yog ib hom kev pom zoo rau LPG kev pabcuam.
** 3. Cov yeeb nkab xim dab tsi yog siv rau cov pa roj? **
Cov kav dej thiab cov tubing tshwj xeeb tsim rau cov roj av nyob hauv av tau yuav tsum tau daj lossis dub nrog cov kab txaij daj rau cov cim yooj yim.
** 4. Hom yeeb nkab tsis tuaj yeem siv rau roj? **
Pvc yeeb raug txwv tsis pub siv rau hauv kev siv roj roj roj vim tias nws tuaj yeem raug nplawm thiab tawg, ua rau muaj kev phom sij roj.
** 5. Dab tsi yog dub HDPE cov yeeb nkab siv rau? **
Dub HDPE cov yeeb nkab feem ntau yog siv rau cov chaw ua dej hluav taws xob, suav nrog cov dej hauv av, thiab, thaum nws daj lossis cim nrog cov pa taws.
