Leyon Hluav Taws Sib Ntaus Ob Qhov Rooj Grooved Check Valve
LeyonGrooved ob lub qhov rooj kos valveyog ib hom kos valve (tsis rov qab valve) nrog grooved kev twb kev txuas. Nws yog siv los tso dej ntws los ntawm nws nyob rau hauv ib qho kev taw qhia, thiab cov clappers qhib kom tso cai rau pem hauv ntej ntws los yog ze rau thaiv kev thim rov qab.
Sau koj cov lus ntawm no thiab xa tuaj rau peb