Pressure gauge test bench principle and description

Pressure gauge test bench principle and description The pressure source is an important auxiliary equipment in the pressure instrument measurement work. The pressure transmission medium is air. Due to the adoption of valves and joints, its sealing, durability and lightness are excellent. The p

The sales of heavy trucks have obviously decreased


Starting in March of this year, a new round of “blowout” growth has engulfed the heavy truck industry, and the heavy truck market has sold more than 50,000 units in a single month for three consecutive months. In April, the heavy truck sales reached the highest single month in