Hangzhou Jingyou Chemical Co., Ltd. attaches great importance to product quality and regulatory requirements, and strictly controls the process of quality supervision, so as to provide customers with high-quality and high-standard products and services.

We manage strictly in accordance with ISO9001 standards from procurement, production, sales and other links, forming a strict quality management system.

Raw material control
All raw material suppliers have been systematically inspected, product samples have been sent for analysis, trial use, and quality assurance agreements have been signed.
Production process control
The production workshop system is based on sophisticated production equipment and the design of the national professional design institute, and adopts advanced automation system such as DCS system to control the production process.
Laboratory Quality Inspection and Calibration System
The laboratory has liquid chromatograph, gas chromatograph, particle size distribution analyzer, Karl Fischer moisture analyzer, PH meter, melting point analyzer, electronic balance, spectrophotometer and other analytical equipment.

Strict internal control indicators

Referring to the requirements of the market for products, we have formulated stricter "internal control" or "internal control" of product quality indicators to ensure that the delivered products can be close to zero defects and zero complaints.

Extensive exchange of analytical techniques with customers.
Sample retention management
Jingyou workers keep samples of the delivered products and keep them for 2 years. The purpose is to re-evaluate the products in the future or to retrospectively analyze the complaints raised by customers.