The " gap between the two thousand years " can be regarded as a big chess in the political history of our country . It is not only Chu and Han , but also...
The "four factory one house" of the new China Tool Industry. precision CNC machining. Before the founding of new China, there was no independent tool industry in China. There were only a few small workshop...
You should pay attention to the following items when you drop the machine. service metal fabricating. First, preparatory work: The foundation meets the required foundation according to the foundation map, which is enough to support the...
Abstract: Aiming at the common air volume in the production process of cast aluminum piston, the shrinkage defect types were analyzed briefly, reveals the main causes of the defects and solutions. precision sheet metal. For...
Headlamp frame The front light frame of the car is usually coated with thermoplastic plastic. The common materials are PC, PBT, ABS and so on. fabricated metal products Rearview mirror + body decoration Automotive materials require high...
In the United States, a poor and impoverished young man, even though he didn't put all his money together enough to buy a decent suit, he still wholeheartedly adhered to his dream: to be...