The first-level maintenance of the mold's primary maintenance mold refers to the operat…
With the continuous advancement of science and technology, refrigerat…
CNC auxiliary function: M function - the function used to command the auxi…
Three-month composite trading closing support resistance at 14th RSI on the 10th MA 30th MA per…
The precision gear is measured by vacuum carbonitriding heat treatment, and the layer is 0.…
At the moment, it is time for winter wheat planting. In recent…
Since the 1980s, with the rapid development of modern manufacturing techno…
Abstract Diamonds are long-lastin…
There are many plate products on the market, and the use and decorative effects of many pl…
Abstract: According to the dispersion and fuzziness of hydraulic pump fault characteristics, a…