1

Supplier quality control

Relevant footage of incoming materials area and substrate warehouse, and inspection personnel conducting on-site re inspection

The company strictly follows the requirements of the quality management system to manage qualified suppliers, and conducts item by item inspections on the material specifications, grades, and heat treatment status of the purchased raw materials. In addition to carefully verifying the various materials provided by the suppliers, the company entrusts a third-party testing agency to conduct metallographic testing and spot checks on raw materials and semi-finished products of different furnace batches according to national standards, ensuring that the raw material end meets the basic requirements of the company's product manufacturing, And carefully keep records of incoming acceptance, dispose of non-conforming products or return them to suppliers

Factory acceptance records, some metallographic inspection images, some materials delivered by the supplier, etc

2

Process control

Scenarios of processing in various production workshops, while operators use different detection tools to detect product lenses, reflecting self inspection, mutual inspection, and specialized inspection scenes

According to the requirements of comprehensive quality management, the company emphasizes the full participation of all personnel in the quality control process, starting from technical personnel, frontline operators, and quality control personnel. It strictly follows the product inspection system, implements the first three inspections, and ensures that the products in this process meet the various indicators of product design. It follows the principle that the next process is the customer, controls every step well, and resolutely prevents unqualified products from flowing into the next process. In the product manufacturing process, the company also controls the production process based on the characteristics of different processes, and formulates corresponding control plans and regulations for basic links such as human, machine, material, method, and environment. It ensures that there are rules to follow in various aspects such as personnel skills, equipment operation status, and process data.

Inspection records, equipment inspection forms, equipment status identification

3

Special process control

Inspection scenarios such as stress testing, welding tooth shear force testing, hardness testing, etc

The company is equipped with comprehensive testing and inspection instruments. For the special process of circular saw blade production and manufacturing, process parameter methods are used for control, and scientific sampling ratios are used for corresponding tests or life tests to retest the manufacturing results, ensuring that the products delivered to customers are qualified products that meet the company's factory standards

4

Quality analysis and continuous improvement

Quality control department scene, and please ask Sister Zhang to cooperate

The quality control department of the company adopts scientific analysis methods to summarize and analyze quality issues. By organizing cross functional teams to conduct thematic research and continuous improvement on the discovered problems, the manufacturing and quality level of products are continuously improved

5

Acceptance of finished products

Experimental center, semi-finished product warehouse, and finished product warehouse scenarios

To ensure that each batch of products can meet the designed performance and service life requirements, the company has established a dedicated laboratory to conduct actual cutting performance and service life tests on the produced products according to the batch situation, ensuring that the products delivered to customers meet the requirements