In order to avoid people’s health being threatened, the filling materials in the wooden fire doors are non-toxic and environment-friendly fire insulation materials, which not only reduce the production cost, but also achieve energy conservation and environmental protection. The fire resistance of wooden fireproof door shall not be less than 0.6 hours.

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.