The surface treatment process of steel fire door leaf is powder spraying or PVC coating, which is a mature environmental protection process. The steel fireproof door has the characteristics of environmental protection and durability. It is very suitable for public use.

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.