Jiangsu Runfeng Jiu Seals Co., Ltd. quality control

Our work is guided by quality principles.

Our goal is to fully satisfy our customers' expectation through the number of our products and services.
Quality and quantity improvements are every staff's responsibility and ultimate goal from the top management to every staff.
Our suppliers contribute substantially to the number of our products and services. Therefore，our suppliers must live up to the same high-quality standards we have adopted.

Fundamental Approach to the Pursuit of Quality Management

The fundamental principle of Monozukuri lies in Sonka's commitment to Quality and Reliability in order to provide products that customers are happy to own.

For our company, putting the customer first constitutes one of its Basic Managerial Principles, and all divisions are responsible for putting this principle into practice, whether development, manufacturing, sales, after-sales service, or management. Sonka considers a continuous process of reform and improvement to be fundamental. The scope of Sonka's quality management is as indied below. The company uses indices to promote such management.