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Keywords Here:tapping
Metric thread in MM (millimeter) as the unit, its tooth Angle of 60 degrees. American thread and inch thread i...
Hardware: the traditional metal products, also known as "hardware". Refers to the gold, silver, copper, iron, ...
Refers to is engaged in metal processing, manufacturing, production, smelting, mining, and other activities of...
One, the "hardware"Hardware, as the name implies, is refers to the five kind of metal. Hardware the word first...