Hauj lwm lawm
Xa kev nug
Mos Flange Npauj Npaim Valve

6 Kev Pabcuam Loj

Txheej txheem ntau lawm


Nta


Lub Tuam Txhab Txuj Ci

Txheej txheem kev koom tes

Cim npe nrov: hluav taws xob mos foob ptfe flange npauj npaim valve, Tuam Tshoj, tuam ntxhab, lwm tus muag khoom, Hoobkas, yuav, nqe, hais
