日日躁狠狠躁夜夜躁a片图片,av日韩手机在线,亚洲 中文字幕在线观看,亚洲精品在线观看熟女人妻

The plates, profiles and other main finished materials used for the fabrication and installation of ventilation pipes shall comply with the provisions of the current national standards for design and related products, and the factory inspection certificate shall be applied. The materials shall be accepted according to the current relevant national standards when entering the site. Yiguantong Xiaobian reminds you to pay attention to the use of air ducts of different materials.

在這樣的前提下，工業(yè)通風(fēng)系統(tǒng)選用的風(fēng)管材質(zhì)為鋼板和鍍鋅板。凈化空調(diào)系統(tǒng)選用的風(fēng)管材質(zhì)為鍍鋅板和不銹鋼，不要用可能出現(xiàn)塵源污染的玻璃鋼、復(fù)合材料的風(fēng)管;環(huán)境控制系統(tǒng)選用的風(fēng)管材質(zhì)為鍍鋅板和不銹鋼。

On this premise, the air duct materials selected for the industrial ventilation system are steel plate and galvanized sheet. The air duct selected for the purification and air conditioning system is made of galvanized sheet and stainless steel. Do not use FRP and composite air ducts that may be polluted by dust sources; The air duct selected for the environmental control system is made of galvanized sheet and stainless steel.

空調(diào)系統(tǒng)用的是鍍鋅板和彩鋼保溫板風(fēng)管。在特殊場合，例如礦產(chǎn)商用涂膠布風(fēng)筒和礦用塑料通風(fēng)管，這樣可以阻燃抗靜電礦用的特性。此外還有玻璃鋼風(fēng)管分有*和無機(jī)二種，有消防要求的是禁用材質(zhì)的。

The air conditioning system uses galvanized sheet and color steel insulation board air duct. In special occasions, such as mineral commercial coated cloth air duct and mining plastic ventilation pipe, this can improve the characteristics of flame retardant and antistatic mining. In addition, there are FRP air ducts, which are divided into * and inorganic. The materials with fire protection requirements are prohibited.

目前，非金屬風(fēng)管材料發(fā)展較快，品種較多，困其具有的特性和優(yōu)點，應(yīng)用也越來越廣泛。為了保證使用中的，對這些材料制作的風(fēng)管提出了應(yīng)按工程的需要具有不燃或難燃B1級的燃燒性能要求，而其表面層為不燃材料。

At present, non-metallic air duct materials develop rapidly and have many varieties. Due to their characteristics and advantages, they are more and more widely used. In order to ensure the in use, the air ducts made of these materials are required to have the combustion performance of incombustible or flame retardant grade B1 according to the needs of the project, and the surface layer is made of incombustible materials.

本文的精彩內(nèi)容由山東通風(fēng)管道提供知識提供，本網(wǎng)站還有很多的精彩內(nèi)容，更多的內(nèi)容您可以點擊進(jìn)入：http://www.fsjt-gov.com我們有專門的客服為您解答問題

The wonderful contents of this article are provided by Shandong ventilation pipeline. There are many wonderful contents on this website. You can click to enter more contents: http://www.fsjt-gov.com We have special customer service to answer your questions