3 thoughts on “Why does Zhou Dafu gold hard, do you use testing?”
Pauline
Basically, because of the process needs, some other metals will be added, so the purity is not 999, and some are the purity of 990 to 995. This is also a little difference in the price of gold in different businesses.
The stores in the country will not agree with you to test, and there is no such service. Basically, well -known merchants will not fraud. Consumers must clearly consult and choose good reputation merchants to buy. Compare Guaranteed.
The hardness of gold is detected. The instruments used in the test are mainly hardness meters. Specifically: Luo's hardness meter, Victorian hardness meter, British hardness meter, Li's hardness meter, Nu's hardness meter.
The knowledge about measurement is recommended to go to Islaoye. Will be more comprehensive
Different manufacturing processes, the hardness of different parts of the jewelry is different. For example, the fixed part of the carved hanging buckle is relatively hard. If you buy it from a regular monopoly mall, you do n’t need to identify the goldenness.
Basically, because of the process needs, some other metals will be added, so the purity is not 999, and some are the purity of 990 to 995. This is also a little difference in the price of gold in different businesses.
The stores in the country will not agree with you to test, and there is no such service. Basically, well -known merchants will not fraud. Consumers must clearly consult and choose good reputation merchants to buy. Compare Guaranteed.
The hardness of gold is detected. The instruments used in the test are mainly hardness meters. Specifically: Luo's hardness meter, Victorian hardness meter, British hardness meter, Li's hardness meter, Nu's hardness meter.
The knowledge about measurement is recommended to go to Islaoye. Will be more comprehensive
Different manufacturing processes, the hardness of different parts of the jewelry is different. For example, the fixed part of the carved hanging buckle is relatively hard. If you buy it from a regular monopoly mall, you do n’t need to identify the goldenness.