Nau’o’in kofofin wuta an raba su zuwa kofofin wuta na itace da kofofin wuta na karfe. An raba su zuwa maki uku: Grade A, Grade B da Grade C. Maki uku sun fi tsayin lokacin juriyar wuta. Class A Ƙofar hana wuta, tare da juriyar wuta na 1.2; Ƙofar B mai hana wuta, tare da juriyar wuta na 0.9; Ƙofar kariya ta Class C, tare da juriyar wuta na 0.6.

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.