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 > Guangzhou Steel News: Steel domicile pressure plate concrete composite floor system
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://m.e-sosa.com

Guangzhou Steel News: Steel domicile pressure plate concrete composite floor system

Time:[2015-8-26]  Hits:5369

Guangzhou Steel News: Steel domicile pressure plate concrete composite floor system


Because floor 1.5 hours to meet fire safety requirements, which shall be poured on 80 thick concrete, the choice of dish steel sheeting slab thickness will reach 130 ~ 150mm, and is used when the resident of construction, interior subject to the ceiling, such as the choice of fresh buckle type of pressure plate slab thickness can be reduced to 110mm, can be used for steel shelter baraeck the BD-40 type Energizer button pressure plate, which rib height of only 40mm, and the mouth is closed, you do not need to do the ceiling, only bandages need to be affixed in the crevice. Because the composite slab bears a passing level of force, and therefore the pressure plate girder and should set the necessary convergence at stud, consider the combined action of steel beams and floor design, it can significantly improve the bearing capacity and stability of the beam, effective reduce the high beam. Usually a combination of the lower part of the floor without additional reinforcement, but there are dynamic loads and relatively humid area, the lower floor still needs to cultivate the necessary structural steel. But the combination of floor should meet the requirements weighted standardized impact sound pressure level of less than 75dB. Abroad, floor insulation requirements have become increasingly important in the design of the residence. Guangzhou Steel

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
日本一区二区三区四区视频| 国产真实伦对白精彩视频| 中文字幕无码人| 护士趴下光屁股翘臀被打的作文 | 67194久久超碰91| 国产精品久久久久精品日日| 婬色婬香插插插| 成人性生交大片免费看京东小视频 | 亚洲国产精品电影人久久| 娃交videossex| 大胸白虎妹子被男人操哭| 被大鸡巴爆操的刺激视频| 被喂春药饮料健身教练玩弄| 91偷拍与自偷拍亚州精品| 70岁老太chinesebbw| 国产全黄A一级毛片视频| 青青青操视频在线免费观看| 天天天日日日天天天操操操| 国产欧美日韩中文字幕在线| 未满十八18勿进黄网站| 国产亚洲精品久久yy50| 国产精品综合亚洲欧美在线| 美女l8禁网站动漫AV| 亚洲丁香五月天| 五险交满15能领多少钱| 操学生妹高清无码粉嫩逼| mm131在线观看福利| 中日毛茸茸的大肥女逼逼| 中国少妇饥渴XXXXX| 18厘米的大鸡吧大学生| 含着她的花蒂咬到高潮| 午夜神马欧美精品福利电影| 欧美精品福利一区二区三区| 国产成人AV性色在线影| 小黄片日韩国产| 亚洲国产精品黄在线观看| 国产成人综合亚洲欧美日韩| 熟女菊蕾老妇俱乐部视频| 短裙公车被直接进入被c| 好爽~bb好爽强奸乱伦| 黄色视频的网址在线观看|