Among the more than 50 companies recently surveyed by the China Machine Tool & Tool Industry Association, 76.6% were enterprises with nega.......
In the country of instrument and meter production, Asia is the second largest. The types of production are relatively complete, but no matter how .......
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The latest data shows that in the first half of this year, the sales volume of Chinese brand passenger cars reached 5,101,100 units, a year-on-year increase of 3.43%, accounting for 43.39% of the total.......
The latest data shows that in the first half of this year, the sales volume of Chinese brand passenger cars reached 5,101,100 units, a year-on-year increase of 3.43%, accounting for 43.39% of the total.......
Cotton is a very important economic crop in China. Cotton planting is an important cropping industry for increasing production and income in many areas of China. In recent years, in order to protect the income of cotton farmers, leading the majority of cotton farmers to increase .......
Cotton is a very important economic crop in China. Cotton planting is an important cropping industry for increasing production and income in many areas of China. In recent years, in order to protect the income of cotton farmers, leading the majority of cotton farmers to increase .......
Soil fertility is a very important indicator for assessing land productivity. Land with good soil fertility is generally not only loose in structure, but also balanced in nutrients and high in content. The soil with low soil fertility tends to be hard and hard, and it is easy to .......
Soil fertility is a very important indicator for assessing land productivity. Land with good soil fertility is generally not only loose in structure, but also balanced in nutrients and high in content. The soil with low soil fertility tends to be hard and hard, and it is easy to .......
1. Determination of product range From the absolute safety considerations of the product, it is generally preferred to make the working pressure value 60%-80% of the standard range value. The overload pressure caused by abnormal conditions may occur in the whole measurement system. Max.......