Quality Control Principles:

1. Supply chain management

Quality control of raw material suppliers is the source and the top priority. We select qualified partners through a strict supplier management system, control product quality from the source, and evaluate and audit raw material suppliers every year to eliminate unqualified supplies. We continue to optimize qualified suppliers in order to control the quality of products from the source. We always believe that only good raw materials can produce good products.

2. Incoming material management

For suppliers' incoming materials, we have a strict quality management system. Each batch of incoming materials must be sampled or fully inspected. Only incoming materials that meet the standards can enter the warehouse system. Professional quality personnel ensure that the incoming materials meet the requirements.

3. Process management

We have formulated detailed work instructions for each product, and have a strict inspection system to ensure that the entire production process meets the requirements. Each batch of production requires the confirmation of the first piece to ensure product consistency and stability.

4. Shipment management

Complete shipping management procedures to ensure that each product undergoes rigorous testing and inspection before packaging to ensure compliance with product quality standards

The doctrine of our product quality control is: only strict management system can ensure product quality meets the requirements