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Overcoming technical challenges, heat meters achieve a new breakthrough.
The prices of domestic heat meters have consistently been lower than those of foreign heat meters, and the primary reason for this is that domestic heat meter manufacturers have yet to overcome the challenge of ensuring accurate measurement across the entire range—this technological lag has been a major factor.

An ultrasonic heat meter must ensure that its measurement accuracy remains at Class 2 under any temperature or flow rate within its applicable range in order to be properly classified as a Class 2 meter. However, existing domestic brands can only be referred to as “quasi-Class 2 meters”—that is, they can achieve Class 2 accuracy only within a narrow temperature range. Once the temperature variation exceeds this narrow range, their accuracy will no longer be reliable.
Another Chinese brand has once again broken through technological bottlenecks in a key field, reaching new heights. We will continue to strive relentlessly to accomplish more tasks and solve even more challenging problems.
Longzhida Company Successfully Hosted the Victory Parade Commemorating the War of Resistance.
Longzhida Company Successfully Hosted the Victory Parade Commemorating the War of Resistance.
Today is a day that every Chinese person should solemnly remember—the 80th anniversary of the victory of the Chinese People’s War of Resistance Against Japanese Aggression and the World Anti-Fascist War.
On July 2, Chengde Longzhida Company held a meeting with the Sino-German Institute. After thorough discussions between the two sides, Mr. Bai, General Manager of Longzhida Company, and the faculty team from the Sino-German Institute reached a consensus: Longzhida Company officially entrusted the Sino-German Institute to carry out the design and R&D work for a new type of ultrasonic water meter.
On May 30, Longzhida Company successfully held an exceptionally meaningful event titled “Welcoming the Eighth ‘National Science and Technology Workers’ Day’: Promoting the Spirit of Scientists.”