Hauj lwm lawm
Xa kev nug
oval taper pebqhibmanhole
Qhov manhole no yog siv dav hauv cov khoom noj siv mis, dej haus, tshuaj tso tsheb hlau luam.
Nrog lub siab tsim, tag nrho stainless hlau, gasket xaiv: EPDM, PTFE, SILICONE.
