六十路の高齢熟女が_影音先锋免费AV资源在线资源_久久无码精品一区二区三区_乱人伦精品视频在线观看

NEWS

Three classification of aluminum alloy doors and windows accessories

DATE:2018/5/23 15:05:25   |TIMES:7239



Aluminum alloy doors and windows accessories are the general name for aluminum alloy doors and windows accessories, and the hardware of our common sense is only part of them. The aluminum alloy door and window accessories are the general name for ensuring the flexible and smooth opening and closing of the aluminum alloy doors and windows, the tight structure, and all the accessories of the door and window accessories. Generally, it can be divided into three categories: hardware, sealing materials and auxiliary parts.

1. Hardware


That is, we often talk about doors and windows hardware accessories, such as handles, hinges, sliding braces, pulleys, locks, crescent locks and a series of door and window hardware accessories. It is mainly responsible for the connection, transmission and opening and closing of doors and windows. It belongs to the core components of the performance of the doors and windows.

Aluminum alloy door and window hardware according to the product classification: transmission mechanism with hands, spinning, hinge (hinge), transmission lock device, sliding support, support gear, pin, multi point lock device, pulley, single lock device and flat open hardware system.

Aluminum alloy doors and windows hardware can be classified as: sliding door and window hardware, flat window hardware, inside and outside accessories and hanging window accessories.

2. Sealing material


Now buildings are talking about energy saving and environmental protection. Doors and windows are also the most important part of building energy consumption. So the sealing of the doors and windows is very important. Wool and glass sealant are the main sealing materials. The tops are mainly used for sealing between frames and fans, and glass sealing strips are used for sealing between glass and fans and frames. Sealing materials play an important role in aluminum alloy doors and windows for waterproofing, sealing and energy saving. The doors and windows of the Pearl are made of imported silicone sealant, which are firm and durable after being dry and good sealing performance.

3. Auxiliary parts


Commonly used auxiliaries are climbing blocks, anti falling blocks, corner guards, bumper blocks, corner codes, connectors, reinforcement and so on. It is mainly used to improve the assembly level of aluminum alloy doors and windows and ensure the overall performance of doors and windows. These accessories are optional accessories and play a role of icing on the cake. They will not affect the basic operation of doors and windows.
TOP

Copyright © 2018 NingBo RIECHE Machinery co.,ltd  浙ICP備15045853號

色欲AV天天AV亚洲一区 | 妃光莉妃ひとみ无码 | 蜜桃av在线入口 | 欧美又大又粗又爽特黄A片亲月 | 日韩精品免费一区二区中文字幕 | 亚洲欧洲无码色中文字幕在线 | 国内精品人妻无码久久久影院蜜桃 | 性感狐不妖精品午夜日韩福利在线 | 日日国产成人自拍aV | 国产亚洲欧洲997久久综合 | 亚洲一区二区三区四区五区不卡 | 久久少妇免費观看 | 免费久久女人一级毛片视频 | 一本色道**综合亚洲精品蜜桃冫 | 亚洲国产精品密芽久久久 | 前田香织一区二区av | 欧美性做爰又大又粗又长 | 亚洲天堂国产精品 | 国产精品亚洲三区在线观看 | 金莲A片无码免费播放 | 久久精品国产精品 | 蜜臀久久99堂精品久久 | 99久久精品免费看国产免费粉嫩 | 欧美日韩精品久久久免费观看 | 西西4444wwww大胆无吗 | 亚洲精品国产成人片在线观看一区二区三区 | 亚洲熟妇无码乱子AV电影 | 国产精品秘 久久性 | 国产成人精品视频 | 久久精品毛品无码一区三区 | 久久丫不卡人妻内射中出 | 日韩内射免费观看 | 91国产精品在线自慰 | 韩日AV在线免费观看 | 亚洲精品字幕在线观看 | 女人自慰网站在线观看 | 国产精品秘 麻豆果冻传媒下载 | www超碰.com| 熟女人妻第10页 | 四川少妇搡BBB搡BBB搡多人伦 | 精品无码人妻一区二区欧美日韩 |