The ZA type worm (m_x=4, y=7°35'41′′ and m_x=6, p=9°26′44′â…
Pro…
On May 23, 1991, the Fourth National Congress of the China Association for Science and Technol…
LME Market: The London Metal Exchange (LME) base metals mostly closed lower on Monday. Traders …
Negative pressure fan wet curtain engineering generally refers to the…
The welded assembly shown in Figure 1 is welded from three parts. After the parts 2 and 3 are …
In the 1950s and 1960s, the car, milling, drilling, boring and planing masters of the machiner…
Cladding Metal Thicknes…
Our factory is a professional manufacturer of micro-classification gauges. In the process of p…
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