Ana amfani da kofofin hana wuta na UL a Arewacin Amurka da sauran ƙasashe da yankuna waɗanda suka fahimci ka’idodin UL, suna biyan buƙatun kwanciyar hankali na juriya na wuta, daidaito da ƙarancin zafi a cikin wani ɗan lokaci. Daban-daban da sauran kofofin wuta, daidaitattun ƙofofin wuta na Amurka suna da alaƙa da cewa daidaitattun kofofin wuta na Amurka suna buƙatar wucewa gwajin yajin ruwan wuta.

ZHTdoors kofofin wuta, shekaru 31 na ƙwarewar samarwa a cikin kofofin wuta da Windows. Babban UL wuta kofofin, EN wuta kofofin, BS EN wuta kofofin, da dai sauransu,.Muna da certification.ZHTdoors goyon bayan OEM da free design.Our abũbuwan amfãni: kyau quality, factory farashin, mai kyau service.Barka da tuntubar mu.