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

人人爽人人爽人人爽AV片特级 | 成人国产精品秘 在线看 | 欧美老肥婆性猛交视频 | 3d动漫精品一区二区三区在线观看 | 在线观看午夜成人一区二区三区 | 911精品人妻一区二区三区A片 | 久久精品秘 一区二区国产 亚洲精品成人A片动漫 | 特大巨人黑人AAA片BBC | 亚洲综合第一页偷熟妇 | 午夜精品久久久久久久9 | 日本女人性BBBBB爽爽 | 免费无码成人又爽又高潮天美 | 午夜福利视频影院 | 91在线看免费视频颜色 | www夜片内射视频日韩精品成人 | 成人免费黄片观看中文 | 9l视频白拍9色9l视频 | 亚洲无码在线播放视频 | avtt在线播放 | 国产在线精品二区 | 亚洲国产精品网站在线插放 | 波多野结衣理论片 | 久久夜色精品国产噜噜亚洲AV高 | 亚洲乱码一区二区三区无码斗罗 | 亚洲 日本 欧美 | 插少妇激情高潮视频 | 国产 在线观看免费视频 | 国产做受 高潮久久五通魔神 | 久久国产成人精品 | 国产中老年妇女A片视频 | 麻豆传媒中文字幕 | 波多也结衣高清无码 | 少妇做爰A片免费看淑女出墙 | 海角社区91真实 | 午夜久久动漫免费观看视频 | 亚洲AV乱码在线观看 | 国产极品久久久久久久久波多结野 | 丝袜熟女A片在线观看 | 国产真实乱对白精彩久久老熟妇女 | 亚洲精品在线无码绯色 | 性欧美 潮喷孕妇吞精 |