国产乱人激情H在线观看,欧洲无线一线二线三线区别大吗,在线aⅴ亚洲中文字幕,无码人妻精品一区二区三区在线

Welcome to jiangsu xinpeng jiahe construction technology co., LTD.

  • Scan view mobile phone station

  • Scan public attention number

TEL：+86-0516-83202818

Current position:Home - News - Company news

Fire protection measures for steel structure

Steel has the advantages of high strength and good ductility, which determines that the steel structure has the characteristics of light weight, good seismic performance, and large bearing capacity. At…

How to judge the quality of steel

The specific production capacity of a business can be seen from the condition of a business mans factory, just like some people can be seen from a few things. I think this is the so-called "smell …

Eight main points of steel structure design

Steel structure is usually used in the structure of high-rise, large-span, complex shape, heavy load or crane lifting, large vibration, high temperature workshop, high tightness requirements, movable o…

Steel structure roof waterproof plugging project

1. Quick-setting plugging spirit:Quick-setting type plugging system is inorganic rigid plugging material. The product is gray powder. It can be used after mixing with water. The construction is complet…

Characteristics of high-rise building with hanging structure

What are the characteristics and advantages of using a suspended structure for high-rise buildings? Steel structure manufacturers and everyone understand the characteristics of high-rise buildings usi…

Manufacturing process of steel structure grid

The production process of steel structure grid:1. Mechanical index of steel structure: The mechanical index of structural steel includes yield point, tensile strength, elongation and low temperature im…

Copyright ? 2020 all rights reserved ?Jiangsu Xinpeng Jiahe Construction Technology Co., Ltd.
Platform support：     Design and production:
国产精品自产拍在线观看55| 国产内射爽爽大片视频社区在线| 樱桃视频大全免费观看| 亚洲乱亚洲乱妇50p| 国产乱码免费卡1卡二卡3卡四卡| 末成年女AV片一区二区|