<p>Bolt and nut making from cust iron. Cust iron rod 10 to 18 mm comeing from iron supplyer. First iron rod cuting&nbsp;4" to 10" in a big machine.&nbsp;</p><p>cuting piece give a hot disel or coal oven. cuting rod after hitting give to bolt dice machine for making bolt . The bolt give for cold in a pot which fill of water and acid. After one or two days collect all bolt from pot and give to bolt reduce machine for threading process. After reducing the bolt go to pointing machine for thread start point. The bolt go to threading machine for making thread. A bolts threading machine are attach a oil pump&nbsp;for oil flow into threading dice.</p>

HOW TO MANUFACTURING BOLTS AND NUTS?

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