An raba kofofin wuta zuwa rufin zafi / partial thermal insulation / non thermal insulation ƙofofin wuta gwargwadon juriyar wutar su. Ƙofofin wuta da muke kira thermal insulation wuta kofofin sun kasu kashi uku bisa ga iyakar juriya na wuta: Class A (1.5h), Class B (1.0h) da Class C (0.5h). Ƙofofin wuta sau biyu za su kasance suna da aikin rufe kansu a jere, wanda aka samu ta hanyar mabiyi.

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.