Yuyan was founded in 2016 in Qingdao (Tsingtao), a beautiful city, is famous for being described as “red tiles green trees, blue sky blue sea ”in north China on Yellow Sea coast. The port of Qingdao is one of the world’s busiest seaports, which brings the convenience of shipping and the advantage of cost to our company.

As one of the high-tech innovative enterprises, Yuyan sets up scientific manufacturing, sales and technical service as a whole. Our products are widely used in fields of petroleum chemical industry, welding, electronic industry, automobile lamp production, scientific research, environmental protection, medical and other industries......

Public reputation

The company has become one of the main suppliers of domestic standard gas(calibration gas) market with more than hundreds of current customers, covering most provinces in China.

Global cooperation

Yuyan is geared towards long-term profitable growth and focuses on the expansion of its international business with forward-looking products and services.