少妇人妻精品一区二区三区-成年人看的性生活视频-欧美三级a做爰全过裸体-国产夫妻性生活免费看

Good quality, first-class service Qigao creates more value for you!

"Qigao Valve" expects to continuously improve service quality and strive for excellence. "Sincere service" is the eternal theme of "Qigao". “Qigao” strictly follows the IS09001-2000 quality system certification requirements, strict quality control, responsibility to people, to ensure the healthy operation of production, sales and service. Strengthen communication with users and provide quality products to our customers with perfection and perfect service. Hereby our factory makes the following commitments:

Product Standards:

The products are designed, manufactured and accepted in strict accordance with Chinese GB, HG standards and US API standards. The hardness of the sealing surface meets the requirements of the state and the width exceeds the national standard.

pre-sale service:

Product introduction, technical exchange, non-standard product design, troubleshooting.

In-sale service:

A trustworthy contract guarantees timely delivery and keeps in touch with customers. For special or duplicate products, our factory arranges technicians to use and troubleshoot the products for users.

After sales service:

1. The quality period of “Qigao” brand products is 12 months from the factory, and the “three guarantees” service (return, replacement, warranty) is implemented.

2. During the use of the product, our factory regularly organizes technical and quality inspection personnel to visit, and consults users on product quality, usage status, and improvement opinions to further improve product quality.

3. Respond quickly to the quality of user complaints, and the after-sales service personnel rushed to the scene in 24-36 hours (48 hours outside the province).

4. For after-sales service, the user is required to fill out the quality feedback information form after the service and make an appraisal opinion in order to improve the service quality of Qigao.

1. If the customer has special requirements for the product, the following instructions must be provided in the order contract:

a, the length of the structure;

b, the connection form;

c, nominal diameter, full diameter, reduced diameter, pipe size;

d, operating medium and temperature, pressure range;

e, test, inspection standards and other requirements

2. The factory can configure all kinds of driving devices according to customer's specific requirements.

3. If the type and model of the valve are determined by the customer, the customer shall correctly state the meaning and requirements of the model, and sign the contract under the condition that the supplier and the buyer understand each other.

4, futures, ordering customers, please call the letter in detail to tell the required valve model, specifications, quantity and delivery time, location, and timely into the total account of 30% of the deposit or full payment into our factory account, the rest of the payment Import before shipment, in order to arrange delivery in time.


风流少妇一区二区三区| 欧美日韩亚洲一区视频| 日本欧美亚洲一区二区三区| 四虎在线视频永久免费| 少妇深夜呻吟高潮在线观看| 久久精品国产成人一区二区三区| 蜜臀av在线播放免费| 久久综合网色—综合色88| 国产一区二区在线粉嫩| 亚洲天堂网夜夜夜夜夜| 日本精品亚洲一区二区三区| 麻豆视传媒精品av在线| 日韩一区二区三区青涩| 国产传媒剧情剧资源网站| 上海老熟女啪啪露脸高潮| 久久裸体国语精品国产91| 91精品视频一二三区| 亚洲日本精品一区二区三区| 国产人成视频免费在线观看 | 国产欧美日韩另类在线| 亚洲精品美女久久久久高潮| 人妻熟女一区二区三区| 久久亚洲精品中文字幕馆| 国产精品天堂蜜av在线播放| 女主播国产专区在线观看| 青青草视频免费在线视频| 精品国产一区二区三区色搞| 日韩一区二区三区av在线| 日本熟女视频一区二区| 青青草一区视频在线观看| 少妇被躁潮到高潮无人码| 男人天堂av在线一区| av免费观看男人的天堂| 亚洲第一毛片免费在线观看 | 精品午夜在线一区二区三区| 免费人成黄页网站大全在线观看| 日本国产一区在线观看| 人妖中文字幕在线乱码观看av| 日韩丰满少妇在线观看| 中文字幕视频一区二区| 亚洲国产成人91精品|