5 thoughts on “Where is the Changzhou Jewelry Appraisal Center?”
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Changzhou Quality and Technical Supervision Bureau Gold Jewelry 100 Product Quality Inspection Station Address: No. 323 Labor West Road, Changzhou City Tel: 0519-86644892 Extension data Diamond precautions: 1. Diamonds are afraid of heat: Although diamonds are crystal at high temperature and high pressure, the main component is carbon. However, if it is heated in the air to 800 ° C, it will burn, and it will burn to 720 ° C in the oxygen to form carbon dioxide gas. 2. Diamonds are afraid of ultraviolet rays: If the diamond is placed under the strong UV rays filtered by the ozone layer, a small concave pit will appear on the surface of the diamond. So don't use a magnifying glass in the sun. If you do this, diamonds will be sublimated and disappeared. 3, diamonds are afraid of radiation: the color of the diamond after radiation will change. 4. Diamonds are afraid of oil: Diamonds are close to oil, and it is easy to absorb the oil stains and stains on the surface, thereby weakening the luster of the diamond itself. 5. Diamonds are afraid of impact: Although the hardness of the diamond is well known, the harder the material, the more brittle. Although diamonds can cut anything and are not afraid of grinding, it is easy to break after encountering impact. Reference materials: Baidu Encyclopedia-Gem maintenance Reference materials: Changzhou Quality and Technical Supervision Bureau-Golden Jewelry Inspection Guide
Changzhou Quality and Technical Supervision Bureau Gold Jewelry Product Quality Inspection Station Address: No. 323 Labor West Road, Changzhou City Tel: 0519-86644892 R n1. Diamond jewelry should be placed separately. 2. Diamonds have hydrophilicity to avoid oil. 3. Avoid scratching during heavy physical strength. 4. Frequent inspections and claws are left. 5. Regularly use professional ultrasonic or light brush plus cleaner for cleaning. 6. Avoid gravity impact. Reference materials: Baidu Encyclopedia-Gem maintenance Reference materials: Changzhou Quality and Technical Supervision Bureau-Golden Jewelry Inspection Guide
Pay content for time limit to check for freenAnswer a certificate of 200 grams of 100 gramsnJewelry identification is a species of all jewelry jade and organic gemstones and organic gemstones, synthesis, synthesis, manual, handling and some producing characteristics. It can be used to eliminate fake jewelry and jade that fakes imitation treatment. Protect the rights of buyers.nGenerally speaking, if the collection of collections is less than 100,000 yuan, the appraisal fee is basically one thousand, and this is a certificate signed by an expert.n2. If the valuation of the collection is more than 100,000 yuan or even higher, the appraisal certificate fee of jewelry will be higher. Its price is about 5,000 yuan, and the expert signing the authorization certificate.nIf it is a general jewelry appraisal fee, it is cheaper, and its price is about 200 yuan. This is generally identified by professional institutions, so the price is not high. Most of the time, you still have to learn how to identify jewelry by yourself.n3 morenBleak
Golden Jewelry Product Quality Inspection Station Address: No. 323 Labor West Road, Zhonglou District, Changzhou City, Jiangsu Province. Address: No. 323 Labor West Road, Changzhou Tel: 0519-86644892. extension information: Note: 1. Afraid of heat: Although diamonds will crystallize at high temperature and high pressure, their main component is carbon. But if you heat it in the air to 800 degrees, it will burn. If you heat it in oxygen to 720 degrees, it will burn, and it will form a carbon dioxide gas. 2. Diamonds are afraid of ultraviolet radiation: If the diamond is placed under the ozone layer for strong ultraviolet radiation filtering, a small concave pit will appear on the surface of the diamond after a few seconds. So don't use a magnifying glass under the sun. If you do this, diamonds will be sublimated and disappeared. 3. Diamonds are afraid of radiation: the color of the diamond after radiation will change. 4. Diamonds are afraid of oil: Diamonds have lipids, and it is easy to absorb surface oil, thereby weakening the diamond itself. 5. Diamonds are afraid of impact: Although everyone knows the hardness of the diamond, the harder the materials are. Although diamonds can cut anything and are not afraid of grinding, it is easy to break when it is impacted.
Changzhou Quality and Technical Supervision Bureau Gold Jewelry 100 Product Quality Inspection Station
Address: No. 323 Labor West Road, Changzhou City
Tel: 0519-86644892
Extension data
Diamond precautions:
1. Diamonds are afraid of heat: Although diamonds are crystal at high temperature and high pressure, the main component is carbon. However, if it is heated in the air to 800 ° C, it will burn, and it will burn to 720 ° C in the oxygen to form carbon dioxide gas.
2. Diamonds are afraid of ultraviolet rays: If the diamond is placed under the strong UV rays filtered by the ozone layer, a small concave pit will appear on the surface of the diamond. So don't use a magnifying glass in the sun. If you do this, diamonds will be sublimated and disappeared.
3, diamonds are afraid of radiation: the color of the diamond after radiation will change.
4. Diamonds are afraid of oil: Diamonds are close to oil, and it is easy to absorb the oil stains and stains on the surface, thereby weakening the luster of the diamond itself.
5. Diamonds are afraid of impact: Although the hardness of the diamond is well known, the harder the material, the more brittle. Although diamonds can cut anything and are not afraid of grinding, it is easy to break after encountering impact.
Reference materials: Baidu Encyclopedia-Gem maintenance
Reference materials: Changzhou Quality and Technical Supervision Bureau-Golden Jewelry Inspection Guide
Changzhou Quality and Technical Supervision Bureau Gold Jewelry Product Quality Inspection Station
Address: No. 323 Labor West Road, Changzhou City
Tel: 0519-86644892
R n1. Diamond jewelry should be placed separately.
2. Diamonds have hydrophilicity to avoid oil.
3. Avoid scratching during heavy physical strength.
4. Frequent inspections and claws are left.
5. Regularly use professional ultrasonic or light brush plus cleaner for cleaning.
6. Avoid gravity impact.
Reference materials: Baidu Encyclopedia-Gem maintenance
Reference materials: Changzhou Quality and Technical Supervision Bureau-Golden Jewelry Inspection Guide
Pay content for time limit to check for freenAnswer a certificate of 200 grams of 100 gramsnJewelry identification is a species of all jewelry jade and organic gemstones and organic gemstones, synthesis, synthesis, manual, handling and some producing characteristics. It can be used to eliminate fake jewelry and jade that fakes imitation treatment. Protect the rights of buyers.nGenerally speaking, if the collection of collections is less than 100,000 yuan, the appraisal fee is basically one thousand, and this is a certificate signed by an expert.n2. If the valuation of the collection is more than 100,000 yuan or even higher, the appraisal certificate fee of jewelry will be higher. Its price is about 5,000 yuan, and the expert signing the authorization certificate.nIf it is a general jewelry appraisal fee, it is cheaper, and its price is about 200 yuan. This is generally identified by professional institutions, so the price is not high. Most of the time, you still have to learn how to identify jewelry by yourself.n3 morenBleak
Golden Jewelry Product Quality Inspection Station Address: No. 323 Labor West Road, Zhonglou District, Changzhou City, Jiangsu Province.
Address: No. 323 Labor West Road, Changzhou
Tel: 0519-86644892.
extension information:
Note:
1. Afraid of heat: Although diamonds will crystallize at high temperature and high pressure, their main component is carbon. But if you heat it in the air to 800 degrees, it will burn. If you heat it in oxygen to 720 degrees, it will burn, and it will form a carbon dioxide gas.
2. Diamonds are afraid of ultraviolet radiation: If the diamond is placed under the ozone layer for strong ultraviolet radiation filtering, a small concave pit will appear on the surface of the diamond after a few seconds. So don't use a magnifying glass under the sun. If you do this, diamonds will be sublimated and disappeared.
3. Diamonds are afraid of radiation: the color of the diamond after radiation will change.
4. Diamonds are afraid of oil: Diamonds have lipids, and it is easy to absorb surface oil, thereby weakening the diamond itself.
5. Diamonds are afraid of impact: Although everyone knows the hardness of the diamond, the harder the materials are. Although diamonds can cut anything and are not afraid of grinding, it is easy to break when it is impacted.
Changzhou Quality and Technical Supervision Bureau Gold Jewelry Product Quality Inspection Station
Address: No. 323, Labor West Road, Changzhou City