Among them, the total sales of unmounted ball bearings and roller bearings in 2016 will reach US$71 billion, accounting for 75% of the total sales of b.......
The theme of this year's exhibition is “Commercial Vehicles, Driving the Futureâ€, which will focus on displaying the R&D achievements of the world's commercial vehicle companies and announce the judgment of future product trends. According to information obtaine.......
Heat treatment is a kind of metal thermal processing technology that controls the performance of a metal material by heating, keeping warm, and cooling it in a certain medium by changing the metallographic structure on the surface or inside of the material........
With the vigorous development of new energy vehicles, recently, some experts said that in the current parts and components industry, state-owned enterprises and state-owned capital have retreated to a lesser extent, with private capital and offshore capital occupying the dominant pos.......
This paper introduces a new method of measuring the cutting force of CNC lathe using AT89C51 single-chip microcomputer, and focuses on the method of continuous automatic sampling, A/D conversion, scale conversion and data processing. The article gives the principle.......
1. The sample is not uniform. For example, they have different ingredients. The more uneven the sample, the more samples are needed to obtain better reproducible results.
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Due to concerns about dioxane contamination, the New Zealand Environmental Hazard Agency (ERMA) has proposed the sterilant pentachloronitrobenzene to be banned. Last year the country discovered dioxane in the fungicide product and ERMA initiated the review process. In addition, ERMA also p.......