Lus piav qhia luv luv:

Muaj nuj nqi & Nta

HWS9VA-63 series yog ib qho ntawm cov hluav taws xob tiv thaiv tam sim no tsim

thiab manwfactured los ntawm kev siv cov thev naus laus zis thoob ntiaj teb,

muab nrog ntau lub zog (overunder voltage, tshaj tam sim no,

nws pib reconnect, voltage tam sim no zaub thiab adjustable voltage, tam sim no & lub sij hawm),

dav siv nyob rau hauv ib puag ncig ntawm hluav taws xob, kev lag luam thiab kev lag luam.