With the quality same quality
Qualified copper wire and copper should be purple, luster, feel soft. And and inferior copper wire copper core for violet black, yellow or white, impurities, poor mechanical strength, toughness, and hold that could break, and wire inside often break phenomenon. Check, you as long as a head of the wire strip away 2 cm, and then with a piece of white paper on the copper core rub slightly, if have black on white paper material, impurities in copper core more. In addition, and inferior wire insulation seemed to be very thick, actually is mostly made of recycled plastic, time grows, insulation aging and leakage.
manufacturer
Fake wires are often "3 without" product, but also has the above ambiguous origin such as identity, such as made in China, the Chinese province or city, it is not the origin.
The price
Because of fake and shoddy wire production costs low, therefore, traders in sales, often under the guise of a low price and competitive prices continues to boost sales, make people fall for it.