North Korea Rail products
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Machine element, also known as machine part, is the basic component of machinery, and is an inseparable single part that makes up machinery and machinery. Mechanical parts are not only a discipline that studies and designs mechanical basic parts in various equipment, but also a general term for parts and components. A discipline that studies and designs mechanical basic parts in various equipment, and is also a general term for parts and components. The specific content of mechanical parts as a discipline includes: 1. The connection of parts (parts). Such as threaded connection, wedge connection, pin connection, key connection, spline connection, interference fit connection, elastic ring connection, riveting, welding and gluing, etc.
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