Copper is one of the basic chemical elements. In its nearly pure state, copper is a reddish-orange metal known for its high thermal and electrical conductivity.
A precision tapered reamer is used to make a tapered hole to later receive a tapered pin. A taper pin is a self tightening device due to the shallow angle of the taper.
Which small scale industry is best to start in india now? with capital Around 1 crore (10 milloins) rupees (indian currency)
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