青青青国产91蜜臀一区二区_国产日韩精品情侣AV_国产在线91国语_日本黄a在线网站大全_A在线视频这里只有精品_亚洲丁香五月亚洲欧美_天堂欧美城网站网址_影视自拍高清无码_粉嫩嫩国模无码大尺度视频_国产亚洲欧美日韩在线爱豆

Quality assurance commitment

Quality assurance commitment

The company is strictly in accordance with the ISO9001-2000 international quality assurance system standards. The company has a professional quality control team and professional testing equipment to ensure product quality. details as follows:

1. The company's products are produced in accordance with the relevant national standards, industry standards or enterprise standards, and meet the safety standards, hygiene standards and environmental protection standards set by the home.

2. In addition to the standards provided above, the products also meet the specific or special requirements provided by the owner (such as customized drawings or requirements provided by the owner).

3. The implementation standards and acceptance criteria of the relevant products are as follows: air outlet standard JBJ77-91 "Air Industry Standard for Air and Air Port" and Q/TIGP1-97 "Air Conditioning Port" Shanghai Enterprise Standard GB50243-2002 "Construction and Acceptance of Ventilation and Air Conditioning Engineering" Specification"; Tukou aluminum profile material conforms to GB5237-2000 "Aluminum Alloy Building Profile". Fire dampers and smoke venting valves implement GB15930-2007 "Fire dampers for building ventilation and smoke exhaust systems" and "Code for construction quality acceptance of ventilation and air conditioning engineering" Gb50243-2002 and fire protection specifications for high-rise civil buildings. The air volume regulating valve implements JB/T7228-94 "Air Volume Control Valve" and GB50243-2002 standard. The company manufactures and accepts air outlets, fire dampers, smoke venting valves, exhaust valves (mouths), air volume control valves and mufflers according to the above standards, and promises that all performance meets the requirements specified in the above standards.

4, the warranty period is 12 months, during the warranty period, the company's product quality due to the quality of the product itself, the performance of the product does not meet the requirements for the replacement, replacement, repair, for the installation process during the construction site In the case of man-made damage or failure to properly install according to the product specifications provided by our company, the performance is degraded or scrapped. In line with the principle of friendly cooperation and satisfaction of the owners, our company is responsible for repair and only charges the cost of related products.

5. In order to ensure the quality of the company's products (especially to reduce mis-ordering or improper use of products), the company is responsible for providing pre-sales technical services, sales technical training services and after-sales maintenance services.

The company's products are responsible for lifetime maintenance!


主站蜘蛛池模板: 九色自拍视频在线观看 | 人与禽一级婬片A片 | 久久波多野结衣一区二区 | 熟妇~x88AV海角社区 | 国产偷拍精品一区 | 五月婷婷丁香社区 | 日韩熟女大射精co | 国产做爰XXXⅩ久久久 | 欧美性狂猛爱XXXXXX乱校 | 日本一级毛一片免费视频 | 久久99精品久久久水蜜桃 | 鲁大师在线观看日本电影 | 午夜福利理论片A片在线播放 | 熟妇人妻系列Av无码一区 | AV免费在线精品网站 | 久久人人爽人人爽人人av三级 | 中文字幕在线影院 | 无码一区二区三区视频 | 欧美中文一区国产 | 黄色的网站免费在线观看 | 色色色 亚洲高清无码 | 久久久久无码成人 | 岳乱妇一区二区三区中文字幕 | 国产aV一级无毛 | 男人操水牛逼视频天堂网 | 麻豆传媒AⅤ在线 | 国产美女特级嫩嫩嫩bbb | 亚州无码中文字幕 | 一级久久久久久久毛片女人18 | 黑人巨大vⅰdous娇小 | 苍井空AV无码中出在线观看 | www.xxxx.xxxx| 88av五月天婷婷成人 | 国产亚洲精品综合久久久久 | 超清波多野结衣精品 | 亚洲精品巨爆乳无码大乳巨 | 亚洲不卡无码在线观看视频 | 无码精品人妻一区二区三区影院 | 国产成人无码一区二区三区 | 精品人妻一区二区三区奶水 | 日日夜夜国产夫妻自拍 |