娇妻借朋友高h繁交h,公交车伦流澡到高潮hnp,六月婷婷网视频在线观看,天堂√最新版中文在线

Language:CHINESESENGLISH

Home > News > construction steel structure fire regulations
CONTACT US
  • Address:Pingtang Industrial District, Shipeng Village, Shishan Town, Nanhai District, Foshan City,
  • Phone:0757-81002668/0757-63323396
  • Fax:0757-81196682
  • Contact:Ben Zheng/13826981293 Kerry Lu/13751224830
  • E-mail:sbs@sbsprefabhouse.com
  • URL:http://www.e-sosa.com

construction steel structure fire regulations

Time:[2016-1-27]  Hits:4901

Guangzhou Steel tells you: construction steel structure fire regulations


1. Guangzhou fireproof coating protected by trained and qualified construction professional construction team. Construction of security technology and labor protection requirements, should be the existing relevant provisions of the state.
2. When the steel structure in place, the boom connected thereto, a horse track, pipe racks and other related components even installed, and after passing the acceptance, before proceeding fireproof coating.
3. Before construction, steel surfaces should be rust, and determine in accordance with the requirements of anti-rust treatment. Rust and rust treatment should comply with "Steel Construction and acceptance norms" in the relevant provisions.
4. steel surface debris should be cleaned, cracks or other fire use fire-resistant coating material which is connected at the block level before construction fill.
5. fire retardant coating construction should be carried out before the next interior decoration and are not damaged by the subsequent engineering conditions. When construction on the site and other objects need for fire protection shielding should be protected, just construction coating should prevent dirty fluid contamination and mechanical shocks.
6. Before the construction process and the coating is dried and solidified, the ambient temperature should be maintained at 5 ~ 38 ℃, relative humidity not more than 90%, the air should circulate. When the wind speed is greater than 5m / s, or rain and member surface condensation, not a job.

Copyright:佛山市勝邦鋼結(jié)構(gòu)有限公司 Foshan Shengbang Steel Structure Co., Ltd. Record Number:粵ICP備13078463號(hào)
男生插女生下面喷水视频| 大鸡吧操嫩穴在线看免费| 久久精品亚洲专区午夜精品| 哪里有免费av| 他好骚,操的我高潮不断| 贱货插死你视频| 亚洲欧洲韩国美洲日产国产| 娇小性xxxx摘花hd| 69国产精华最好的产品| 把美女操爆网站免费观看| 日韩国产欧美亚洲一区不卡| 女人被男人操尿视频网站| 骚逼好难受要鸡巴插视频| 用你的大鸡巴操死我视频| 国产内射一级一片内射高清| 国产汉语大鸡巴操逼视频| 欧美bbbbbbb精品| 蜜桃av噜噜一区二区三区| 国产成人一区二区精品非洲| 翁莹情乱第全部篇| 国产精品性爱片| 最新黄色网址| 大鸡巴捆绑调教视频播放| 成人精品精品视频在线播放| 大鸡巴用力插小骚逼视频| 亚洲中文字幕无码久久2021| 国产又粗又猛又爽色噜噜| 香蕉依在线观看| 国产欧色美视频综合二区| 美女被网站大全在线视频| 国产一区二区三区精品片| 国产精品久久久久精品二级| 亚洲高清精品一区二区三区| 大鸡巴黑人网址| 美女屄被肏影视| 熟妇人妻无码XXX视频| 美女大片高清特黄a大片| 久久亚洲av成人无码国产| 广州美女操逼逼| APP下载操小逼的视频| 国语精品国内自产拍视频|