国产尤物一区在线不卡_毛片黄久久久免费观看_不卡一区二区乱在线观看_亚洲波霸中文字幕美国服务器_亚洲网站精品在线观看_亚洲日本精品国产第一区_在线看不卡av婷婷_边摸边吃奶边做免费视频_人妻无码专区好紧_伊人影院国产热门在线午夜

Product

Huaibei Traffic Control

A company dedicated to the research, development and application of new support and reinforcement technology and products

※ Your current location:Home - Product - Steel fire door series
prev
next

Steel fire door series

Update time:2022-12-12

The fire door is generally closed outside the door, open in the direction of evacuation, stand on the front of the door, face the hinge on the right for the right outside, on the left for the left outside. Fire resistance is divided into: Class A 1.5h, Class B 1.0h, Class C 0.5h. 

  • product details

一、Product overview

The fire door is generally closed outside the door, open in the direction of evacuation, stand on the front of the door, face the hinge on the right for the right outside, on the left for the left outside. Fire resistance is divided into: Class A 1.5h, Class B 1.0h, Class C 0.5h. The use of high-quality galvanized steel refining forming, the thickness of the door frame plate >1.2mm, the thickness of the door fan plate 20.8mm, the door filled with high quality perlite fire core plate, density >270kg/m3, hardware accessories are used with fire quality brand.16.jpg

News you may be interested in POPULAR INFORMATION