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Observing a variety of electrical switches will find that one of the two contacts of the switch must be spring loaded to ensure that the two heads are

Compared with other methods of mechanical processing and plastic processing, stamping has many unique advantages both technically and economically.

Stamping die, is a special process equipment in the cold stamping process, the material (metal or non-metallic) into parts (or semi-finished products), known as cold stamping die

Hardware, refers to the use of gold, silver, copper, iron, tin and other metal through the processing, casting the workpiece, used to fix things, processing things