Raws li peb paub tias lub rooj vag valve nrog cov khoom siv sib xyaw feem ntau rau cov me forged rooj vag valve (GG lt;=2") lossis cov rooj vag qhov rooj (2" ~ 4"). tab sis rau qee qhov kev lag luam tshwj xeeb, qhov kawg-tus neeg siv thov saum 6" lub rooj vag valve nrog cov khoom thaiv, peb yuav ua li cas? xws li hais kom hloov tau wedge hloov khoom, lossis cia li ua raws li saj zawg zog tsis muaj kev ceeb toom lossis lwm tus?
Qee cov tuam ntxhab nrog cov kev paub tsis zoo uas tsuas yog ua raws li cov qauv txheem ua ib puag ncig ntawm cov npoo tsuas yog ob peb (GG gt;=6" uas ob peb rov qab ntawm lub ntsej muag foob), hauv lwm lo lus, uas' s fake khoom ( raws li kev qhia txog dwg), thiab hom kev tsim no lub valve ib txwm yuav xau.
Tab sis ntawm NSV VALVE, koj tuaj yeem nrhiav cov khoom tiag tiag rooj vag valve zoo li tus nqov dwg uas qhia, uas tuaj yeem ua tau los ntawm 2" txog 30" raws li cov qauv siv nrog xoom dej xoom.
Yog tias koj' re xav paub txog hom khoom rooj vag valve, txais tos hu rau peb pab pawg muag khoom.
COV PHOOJ YWG PHOOJ YWG .:
TUS TXHEEM FLEXIBLE PHOOJ YWG:
