Hammer first, then file, so that gold ornaments are more delicate and smooth. Then check the interior of the jewelry, sand paper to polish all dead corners, and finely polish with tools such as grinding needle, grinding wheel and disc grinding wheel to further shape. In the process of forging and polishing, a large amount of gold cannot be recovered, which also increases the cost.

2, the method of polishing.

Polishing is soaked in dilute hydrochloric acid. After immersion in hydrochloric acid, rough polishing is performed by immersion in water. After being taken out, it is finely polished by hand. Paint the car after repeated polishing, and fry the car before painting. After the car flower is finished, it is polished by hand, and then reshaped, which makes the wearer feel more comfortable. This sand blasting process is also unique in China.