欧美成人性色xxxx视频-欧美成人性色区-欧美成人性色生活片免费在线观看-欧美成人性视频播放-a级特黄-a级亚洲片精品久久久久久久

Language:CHINESESENGLISH

Home > News > Guangzhou Steel teach you: General steel construction hole and limb protection
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:[email protected]
  • URL:http://www.ggscp.cn

Guangzhou Steel teach you: General steel construction hole and limb protection

Time:[2015-8-8]  Hits:4702

Guangzhou Steel teach you: General steel construction hole and limb protection


1, the side length or diameter of the hole should be 20cm ~ 40cm rigid protective cover plate; edge length or diameter of the hole should be 40cm ~ 150cm erection of steel scaffolding, scaffold boards paved; edge length or diameter of the hole at 150cm above Zhang set up should be a safety net dense mesh fence and added protection.
2, after the building floor hoisting steel beams, partitions should be laying safety net.
3, after hoisting steel beams surrounding floor is completed, should be set up in each limb fence, and the fence height not less than 1.2m.
4, limb scaffold erection, operating platform, network, and other security challenges in the structure should be securely fixed. 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(hào)
主站蜘蛛池模板: 久久99精品福利久久久 | 亚洲国产天堂久久综合图区 | 最新国产精品视频 | jizz中国日本 | 狠狠色丁香久久婷婷综合丁香 | 亚洲国内精品 | 失乐园电视剧日本第5集 | 一区二区三区四区精品视频 | 麻豆国产高清在线播放 | 日韩精品一区二区三区高清 | 蜜柚影视免费版在线视频观看 | 一级毛片成人免费看a | 精射女上司 | 成年人免费在线看惊悚片动作片 | 国产成人香蕉 | 亚洲国产精品免费在线观看 | 精品视频福利 | 欧美成人一区二区三区不卡视频 | 色综色天天综合网 | 亚洲欧美日本韩国综合在线观看 | 日本高清视频在线www色 | 久久女同互慰一区二区三区 | 天天综合天天操 | 看一级毛片免费观看视频 | 日韩毛片最新看 | 四虎综合网| 欧美va亚洲va香蕉在线 | 激情五月婷婷色 | 日韩成人免费在线 | 久久久这里只有精品加勒比 | 天堂在线观看视频观看www | 一级毛片在线直接观看 | 国产三级精品在线 | 欧美日本成人 | 免费羞羞网站视频 | 中文字幕麻豆 | 久久久99精品免费观看精品 | 夜夜夜噜噜噜 | 成人在线免费观看视频 | 超级碰碰青草免费视频92 | 国产精品极品美女自在线观看 |