UL steel fireproof door is made of steel frame, door leaf frame and door leaf panel. If the door leaf is filled with materials, it is filled with fire and heat insulation materials that are harmless to human body. The utility model relates to a fireproof door with a certain fire resistance, which is composed of fireproof hardware fittings.

ປະຕູໄຟ ZHTdoors, ປະສົບການການຜະລິດ 31 ປີໃນປະຕູໄຟແລະ Windows. ປະຕູໄຟ UL ຕົ້ນຕໍ, EN ປະຕູໄຟ, BS EN ປະຕູໄຟ, ແລະອື່ນໆ., ພວກເຮົາມີ certification.ZHTdoors ສະຫນັບສະຫນູນ OEM ແລະການອອກແບບຟຣີ. ຂໍ້ໄດ້ປຽບຂອງພວກເຮົາ: ຄຸນະພາບດີ, ລາຄາໂຮງງານ, ການບໍລິການທີ່ດີ.Welcome to consult us.