How to conduct qualification audit on polyurethane sealing ring manufacturers？

In the qualification audit of polyurethane sealing ring manufacturers, the following aspects need to be considered:

I. Audit of enterprise qualification documents

Company registered capital: Review whether its registered capital meets statutory requirements and confirm that the company is a legally registered entity.

Company business license: Review the authenticity and validity of its business license, including registration place, business scope and expiration date.

Tax registration certificate: Verify the authenticity and validity of the tax registration certificate and confirm whether the tax is paid normally.

Organization code certificate: Check the authenticity and effectiveness of its organization code certificate to determine whether its organization structure is standardized.

Qualification certificate: Find out whether the company has obtained relevant product quality certification, management system certification and other qualification certificates.

2. Audit of quality management system

ISO system certification: Check whether the company has ISO9001 and other international quality management system certification.

Product quality control: Understand the product quality control process and standards directly supplied by the polyurethane sealing ring manufacturer, including raw material procurement, production process, testing means, etc.

Quality control equipment and laboratories: Find out if the company is equipped with appropriate quality control equipment and laboratories to ensure product quality control and testing.

3. Audit of production capacity and technological level

Production equipment and process flow: Inspect whether the manufacturer's production equipment is complete and advanced, and understand its production process flow.

Raw material suppliers: Find out whether the supplier of raw materials is reliable and stable, and verify their quality control measures.

Product samples and technical parameters: imported polyurethane sealing ring manufacturers are required to provide product samples to verify that the quality and performance of their products meet the requirements.

4. Audit of after-sales service

After-sales service system: Understand whether the manufacturer has established a perfect after-sales service system, including product quality assurance, technical support, service commitment, etc.

Customer feedback and complaint handling: Understand how the manufacturer handles customer feedback and complaints in the after-sales service process, as well as the ability to solve problems.

5. Audit of corporate reputation and reputation

Manufacturer background investigation: understand the development history, business status, market position and other information of the manufacturer.

Customer evaluation and word-of-mouth: Communicate with the manufacturer's customers to understand their evaluation of the manufacturer's product quality and service quality.

In summary, when conducting qualification audit of polyurethane sealing ring manufacturers, it is necessary to comprehensively consider the information of enterprise qualification documents, quality management system, production capacity, after-sales service, corporate reputation and reputation. Only through a comprehensive qualification audit can we ensure that a qualified and reliable polyurethane sealing ring manufacturer is selected to provide a stable guarantee for the production and development of the enterprise.