Professional manufacturing and professional services, the heavy industry company is committed to meeting the needs of users and continuously improving service quality. "Quality and life synchronization" is the eternal theme of heavy industry personnel. The company strictly follows the requirements of the ISO9001 quality assurance system, strictly controls quality, and assigns responsibility to individuals to ensure the healthy operation of production, sales, and services, and strengthens cooperation with others

Through user communication, we are committed to providing high-quality products and excellent services to our customers. We hereby make the following commitment: 1. Our products are designed, manufactured, and inspected strictly in accordance with national standards such as Chinese GB, HG, American API, ANSI, Japanese JIS, and German DIN. The hardness of the sealing surface meets the national requirements, and the width exceeds the national standard.

2、 Pre sales service

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

3、 In sales services

（1） Adhere to the contract, ensure timely supply, and keep in touch with customers at all times.

（2）For special or complex products, our company arranges relevant personnel to provide training and guidance to users on product use, troubleshooting, debugging, and maintenance.

4、 After sales service:

1.The warranty period for heavy industry products is 18 months from the date of production, and the "three guarantees" service (return, exchange, and warranty) is implemented.

2.During the product usage process, our company regularly organizes technical and quality inspection service personnel to visit and solicit user feedback on product quality, usage status, improvement opinions, and other aspectsProvide feedback to further improve product quality.

3. Quickly respond to customer complaints about quality issues, and after-sales service personnel arrive on-site within 24-36 hours within the province and 48 hours outside the province.

4. For after-sales service, users are required to fill out product service and quality feedback information forms, and provide appraisal opinions in order to improve the quality of heavy industry products and services.