SN series barrier davhlau ya nyob twg thaiv ua raws li tus txheej txheem thoob ntiaj teb IEC60947-7-1 /, EN60947-7-1.
Qhov zoo
Lub davhlau ya nyob twg tuaj yeem ntsia tau rau ntawm TH35 lossis G32 hom kev qhia kev tsheb nqaj hlau, thiab tseem nyob ntawm lub phaj.
Txais phaj txuas.
Muaj ib qho insulating ib feem, xws li clapboard, pab pawg cais thiab septa.
Nws muaj kev ruaj ntseg plua plav npog