S4505 C
Dawb zinc nres kab teeb haum rau nres proportioning valve PV2 (172-1353), PV4 (172-1361), APV05 (260-11179) thiab hais txog, uas muaj 9/16 "& 1/2" qhov.Nws yog siv rau sab laug mount nres proportional valve brakcet teeb.