91嫩草欧美久久久九九九 I 人人澡人人爽人人 I 婷婷丁香五月六月综合激情啪 I 四虎影院视频 I 91福利专区 I 成人av在线天堂 I 很黄的视频在线观看 I 一区二区在线 | 欧洲 I 高h校园不许穿内裤h调教小说 I 日韩污视频在线观看 I 精品视频一区二区三区在线观看 I av永久天堂一区二区三区香港 I 9.1人网站色 I 夜色网址 I 国产噜噜噜 I 在线看片免费不卡人成视频 I 老司机亚洲精品影院 I 人人草97 I 日本伊人久久 I av在线区 I 国产女人在线 I 日韩黄色一级网站 I 亚洲综合最新无码专区 I 久久99久久99精品免视看看 I 2019久久久高清456 I 天天艹夜夜艹 I 久久欧美一区二区三区性生奴 I 激情艹逼 I 免费人成网ww44kk44 I 黑人巨大精品欧美一区二区小视频 I 欧美精品一区二区性色 I 福利视频在线播放 I 精品少妇一区二区

Hello, welcome to Xuzhou Tenglong Steel Structure Technology Co., Ltd. official website!

Your Current Location:Home > service > Service advantages

Service advantages

? 01 The good faith

Keep the contract heavy reputation, 24 years of experience in the construction industry.

The company has been rated AAA credit enterprises, and the first through the ISO9001 quality system certification.

Steel structure engineering professional contracting class 1, can undertake all kinds of steel structure engineering (including grid frame, light and heavy steel structure engineering, pipe truss, membrane structure) production and installation, construction general contracting grade 3 qualification, curtain wall engineering contracting grade 2 qualification, building curtain wall engineering design special grade b qualification.




02 The quality

Own quality control department, layer upon layer process control, ensure the quality of shipment.

With advanced production technology equipment, test equipment, all kinds of advanced processing, testing equipment and other advanced production equipment at home and abroad.

Adopt advanced electronic testing methods to ensure product quality; Raw material detection through the analysis of raw material components, the content of each element; Design part through the designer to design engineer to design director, layers of approval.




03 Professional

Senior professional construction team and design department can put forward reasonable opinions and complete the design plan according to the actual construction characteristics of customers.

There are 3 Registered Architects and 25 professional design teams.

Keep up with The Times, apply high and new technology to serve the steel structure industry, such as assembly steel structure, application of project management mode in large-scale construction, application of big data in business platform, etc.




04 Service

Have an independent after-sales team, customer service staff 7*24 hours for you

Enterprises have no loans, strong ability to perform contracts, strong production capacity and after-sales support, quality and quantity of the project on time.

The annual design capacity is 20,000 tons; in recent years, the actual annual production tasks are 40,000 tons, 2 production lines of welded H-section steel; 2 production lines of steel pipe columns; 1 production line of pipe truss; 3 production lines of rust removal and painting; and the equipment on the production line is complete and the maintenance is perfect.


主站蜘蛛池模板: 999久久欧美人妻一区二区 | 伊人久久大线影院首页 | 无码r级限制片在线观看 | 国产公开免费人成视频 | 国产乱人伦av在线a 热99re久久精品2久久久 | 一区二区三区鲁丝不卡 | 国产成人综合一区人人 | 亚洲成av人片天堂网无码 | 日韩国产欧美亚洲v片 | 少妇高潮太爽了在线观看 | 国产亚洲精久久久久久无码苍井空 | 国产偷久久久精品专区 | 成人乱码一区二区三区av | 国产激情久久久久影院 | 强睡邻居人妻中文字幕 | 青青草国产三级精品三级 | 久久久亚洲精品无码 | 国产精品无码午夜福利 | 精品人妻系列无码人妻在线不卡 | 国产一区免费在线观看 | 中文字幕日韩精品一区二区三区 | 亚洲日本va一区二区sa | 中文av岛国无码免费播放 | 亚洲亚洲人成综合丝袜图片 | 国产裸体歌舞一区二区 | 免费无码鲁丝片一区二区 | 韩国精品视频一区二区在线播放 | 精品福利一区二区三区免费视频 | 国产精品亚洲а∨天堂网不卡 | 日韩一线无码av毛片免费 | 欧美丰满熟妇xxxx性大屁股 | 亚洲精品久久久久久一区二区 | 国产精品免费一区二区三区四区 | 亚洲欧美精品午睡沙发 | 久久国产劲爆∧v内射-百度 | 性色欲网站人妻丰满中文久久不卡 | 国产精品久久久久秋霞鲁丝 | 久久www成人看片免费不卡 | 亚洲欧洲日产国码无码动漫 | 成人免播放器午夜视频 | 成在人线av无码免费高潮水 |