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The company participated in the development of the group standard "THJX+023-2025 Test Bench Method for Determining the Dull Value of Light Fuel" led by China National Petroleum Corporation Northeast Petroleum Sales Company, with the participation of more than ten units including Guangzhou Customs Technical Center, China Inspection Group, and some provincial and municipal quality inspection institutes. This marks the convergence of the company's original new products towards compliance with the standard.

From January 5 to January 9, 2025, a team of experts from a large petrochemical smelting company in India came to our company to visit and exchange relevant technologies on diesel cetane number determination equipment.

On December 15, 2023, a team of Russian experts came to our company to inspect machinery and equipment.

In April 2023, fuel octane ratings，the combustion analysis test bench delivered by theDooway to Tianjin University successfully passed the acceptance test of various indicators.

A group of Uzbekistan customers came to the company to inspect the gasoline octane rating tester and requested on-site experiments. The customer requested to calibrate the research octane rating of 93.4 and the motor octane rating of 91.6. They observed the entire testing process on site and were very satisfied with the data.

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Our Japanese customers are our old customers, and this is our third repurchase. For professional instrument manufacturers, our quality and service are trustworthy.

The diesel cetane number tester has been used and verified by users for a long time, and its compliance with standards, instrument stability, data accuracy, and timely service have been recognized by foreign customers, which is a great satisfaction for the company.