In the production and manufacturing process of handicrafts, product quality and qualification rate can be improved through the following methods:

1. Strictly control the quality of raw materials: ensure that the materials used meet the requirements.

2. Train workers: Improve their skills and operational proficiency.

3. Develop standardized process flow: clarify the operating specifications for each link.

4. 加强质量检验：在生产过程中进行多次检验。

5. 引入先进的生产设备：提高生产效率和质量稳定性。

6. 优化生产环境：保持清洁、整齐、安全。

7. 建立质量追溯体系：便于发现问题并及时解决。

8. 鼓励员工提出改进建议：共同提高产品质量。

9. 与供应商建立良好合作关系：确保原材料的稳定供应和质量。

10. 持续改进质量管理体系：不断完善质量管理流程。