The spare parts easy to be damaged in the steel fireproof door, such as rollers, are all high-quality hardware with excellent quality and durability. The steel fire door can quickly set windows, louvers, natural ventilation louvers, etc. as required.

Ọnụ ụzọ ọkụ ZHTdoors, afọ 31 nke mmepụta ihe na ọnụ ụzọ ọkụ na Windows. The isi UL ọkụ ọnụ ụzọ, EN ọkụ ọnụ ụzọ, BS EN ọkụ ọnụ ụzọ, wdg,..We nwere certification.ZHTdoors support OEM na free design.Our uru: Good quality, factory price, good service.Welcome to consult us.