Huang Valve
Tsev 123 Rau sab kawg 2/3
Raws li ib qho ntawm tus thawj coj Huang Valve Cov Chaw Tsim Tshuaj thiab cov chaw muag khoom hauv Suav teb, peb sov siab txais tos koj rau lag luam wuariv valve rau muag ntawm no los ntawm peb lub hoobkas. Tag nrho peb cov khoom yog nrog cov khoom zoo thiab cov nqi sib tw.
