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jewelry antique brass chains wholesale Hello, the most authoritative in China is the National Jewelry and Jade Quality Supervision and Inspection Center, referred to as NGTC. No other small ones.
thai costume jewelry wholesale Pay content for time limit to check for freenThe answer to the formal jewelry and jade quality inspection certificate must be a national -identified testing agency. The inspection certificate must be printed with any sign: "CMA", "CAL" and "CNACL". 1. The "CMA" consisting of the national or provincial measurement certification review agency, the measurement certification unit passed by the review. 2. "CAL" country recognized inspection agency. 3. "CNACL" is recognized by the Chinese laboratory country. Jewelry Appraisal Agency and Address: 1. National Jewelry and Jade Quality Supervision and Testing Center-010-84273637 1000132, No. 19 Xiaohuangzhuang Road, Beijing State Gate, Beijing, National Jewelry Quality Supervision and Inspection Center : 648719713, Zhongbao Association Bao Jade Inspection Center -The first floor of the Affiliated Building of the Ministry of Land and Resources, No. 30 of Western Four Lamb Hutong: 665575854, China National Federation of Industry and Commerce Jewelry Industry Chamber of Commerce Jewelry Inspection Research Center -Xichengmen Chengming Building B2, Xicheng District 16th floor B16G Tel: 661695335, China University of Geosciences Beijing Gemstone Inspection Center -No. 29 Haidian District College Road Tel: 8232303n6. Peking University Gem Identification Center-Zhongguancun, Haidian District, Beijing 010-62755676, 1000717, Quality Supervision and Inspection Center of the Ministry of Public Security, Muyu, Musician, Xicheng District, Beijing: 63537336 660245988, International Jewelry Jewelry Joint United Union Hui China Laboratory Beijing Gaode Jewelry Appraisal Research Institute -Room 703, Zhongyi Building, No. 103, auspicious Li, Chaowai Street, Tel: 65520263n9. Peking University Xinghua Gem Appraisal Center-Shipping University New Teaching Building 3303, Zhongguancun University, Haidian District:, Tianjin Baoyu Stone Inspection Center-022-2730225 30005111, Shanghai Zhongzhong Babies Jade Britten Shanghai Wuyi Road No. 242 021-52389058 20005012, Zhejiang Jewelry and Jade Quality Supervision and Inspection Station-Hangzhou Stadium No. 498 0571-5157210 310007n13. Jiangsu Technical Supervision Bureau Nanjing University Jewelry Product Quality Inspection Station-Qianhan No. 22 Hanjiang Road, East China (Room 104, Nanda Xinjiao Building), 025-3593789 21009314, Jiangsu Golden Jewelry Inspection Center-Nanjing Zhongshan East Road, Nanjing City No. 534 025-6641708 21001615, Jiangsu Provincial Technical Supervision Jewelry Jewelry Quality Inspection Station-No. 700, Zhujiang Road, Nanjing City, 025-6646182-265 20001816, Wuxi Gem Testing Center-Jiangsu Wuxi 916 mailbox 0510-3792724 21415117, Fujian Baojian Baojian Baojian Baojiao Baojian Baojian Baojian Baojiao Bao Province Jade Quality Supervision and Inspection Station-0591-3711183 350002, No. 97, Hongshan Bridge, Fuzhou Cityn18. Fujian Gold and Silver Inspection Station-No. 61, No. 61, Beihuan Middle Road, Fujian Province, 0591-7841535 35000319, Yunnan Jewelry Inspection Center-No. 35-3511583 65001120, Guizhou Gold and Silver Jewelry Jade Quality Inspection Station —— Guiyang North Road No. 76 0851-6822333-408 55000421, Chengdu Product Quality Supervision and Inspection Institute-Chengdu Yiguan Miao Yongfeng Road 028-518054 61004122, Chengdu Gold and Silver Jewelry Quality Supervision and Inspection Station-Chengdu Erxianqiao East East East East No. 1 No. 1 028-3334712-4512 61005923, Jiangxi Jiujiang Jewelry Gold and Silver Quality Inspection Station-0792-8225425 33200024, No. 52 Jiujiang Puyang Road, Jiangxi, Hunan Province Golden Treasure Jade Quality Inspection Station 0731-5160105 41000725, Xi'an Gem Identification Center-No. 6, No. 6, South Section of Yanta Road, Xi'an 029-5525062 71005426, Xianyang Gold and Silver Jewelryn26. Xianyang Gold and Silver Jewelery British Inspection Center-0910-3311984 71200027, Binhe Road, Xianyang City, Shaanxi, Shaanxi Province, Gansu Province Baoyu Studio Identification Center-Lanzhou Hongxing No. 168 0931-8886737 73000028, Heilongjiang Baoyu Quality Supervision and Inspection Inspection Inspection Station-No. 65 Harbin City Central Road 0451-5662783 15003629, Jilin City Product Quality Supervision Inspection Inspection Institute-0432-4661517 132011, No. 42, Jilin Street, Jilin Cityn30. Dalian Gold and Silver Jewelery Jewelry Supervision and Inspection Center-Dalian Wanliu Street No. 68-2 0411-4604512 11600031, Hebei Gold and Silver Baoyu Jade Jewelry Quality Inspection Station-0312-3026932 07105132, Hebei Shijiazhuang Municipal Jewelry and Jade Product Quality Inspection Station-0311-5052562 05003133, No. 50 Huainan East Road, Shijiazhuang City, Tangshan Golden Bao Jade Stone Quality Checking Station, Tangshan, Hebein34. Jinan Baoyu Stone Product Quality Inspection Station-0531-2962721 25001435, Qingdao Gem Quality Supervision and Inspection Station, Qingdao City, Qingdao City, Qingdao City, Qingdao City. Golden Jewelry Decoration Quality Inspection Center-Golden Gold Rushi Hangzhou Tianmu Shan Road No. 222 0571, China Light Industry Federation Gao Yusan Supervision and Inspection Center-Shanghai Testing Station Dai Yulong, Shanghai Xinhua Road, Shanghai No. 6, 021-63220033-310 200052n38. Hubei Baoyu Monte Quality Inspection Center-Wuhan Wuchang China University of Geosciences College 027-87481009 43007439, Hubei Wuhan Gold and Silver Jewelry Inspection Center-Wuhan Hankou No. 246, No. 246, No. 246, Hankou, Wuhan Silver Jewelry Quality Supervision Center-No. 186 Wuhan Road, Huangshi City, Hubei Province 0714-6232742 43500041, Chongqing Gem Product Quality Supervision and Inspection Station-Chongqing University Central Experimental Building 318 Room 023-69852528 40002342, Guangdong Provincial Technical Supervision Jewelry and Jade Quality Supervision Inspection Station-020-87777777771-3298, 51008043, Guangdong Gold and Silver Jewelry Testing Center-Guangzhou Agricultural Forestry Lower Road 3 Tunnel Building 020-87301500 510080n44. Jewelry Inspection Center of Guilin Institute of Technology 45. National Gold and Silver Quality Supervision and Inspection Center (Shanghai) 46, Shanghai East China Polytechnic Jewelry Appraisal Centern1. Pay attention to the details of the necklace. Really APM Six Mang Xing Necklace has a large adjustment chain and the workmanship is very delicate. The adjustment chain of the fake APM hexagonal necklace is relatively rough and the adjustment chain is relatively small. 2. Pay attention to observing the sign of the back of the APM Six Mang Xing Necklace. The APM logo behind the APM Six Mangxing Necklace is relatively clear and the font is larger. The APM logo on the back of the fake APM hexagonal necklace is relatively vague and the font is small. 3. The work of the real APM six -mang star necklace is relatively detailed. The small bright diamonds connected by each star are relatively small. The fake APM six -mang star necklace star is relatively large, and the overall looks too rough. 4. All chains of the APM hexagonal necklace are car chains. The car chain looks more flashed because there is a cut surface. The fake APM hexagonal necklace cutting surface will be different from genuine products. 5. APM's necklace material bases are all 925 sterling silver, and fakes cannot be determined. 6. Pay attention to the order of the arrangement of the APM six -mang star necklace diamond. The diamonds of the APM Six Mangxing Necklace are neat and smooth. The genuine products are artificially inlaid diamonds. Fake APM Six -Mangxing Necklace on Diamond inlaidnThe authenticity of the APM Six -Mangxing Necklace 1. Compared with the shape of the six -pointed star, the overall shape of the genuine product is obviously more refined, especially at the end of the end. The end of the fake goods is slightly curved, which looks not straight enough. 2. From the perspective of the crystal diamond, the genuine product is hand -made, and the pure artificial polishing and polishing. In order to save costs, some fake goods on the market are semi -manually polished and polished, so from the nail position, the genuine product is relatively round, and the fakes are relatively flat. And the genuine crystal diamonds are neatly arranged, and it is exquisite at a glance. 3. From the back of the hexagonal star, there are printed fonts. The genuine fonts are very clear, and the size of the circle is as large as the front 925. If it is a fake, the font printing is obviously blurred and rough. The size of the circle is different from the size of the front 925. 4. If you want to buy the genuine APM three meteor necklace, you must buy it from a regular place. It is best to go directly to the counter to buy it. If there is no way to go to the counter, you should also buy it from a genuine shop. When buying, if the price is much cheaper than genuine, it is likely to buy fakes.nMore 10nBleak
hot trendy wholesale fashion jewelry The so -called national level of the jewelry testing agency is a promotional term. There is no superior relationship. Just like the company's registered place, some registered in Dongguan can also be listed companies, and some registered in Beijing can also be the same reason for street shops. Essence
The logo testing agencies must have a must have talent to reflect the authority, lack of one indispensable:
CMA; measurement certification logo, is an entry logo, no illegal. The institution is just the National Quality and Technical Supervision Bureau. Actually this is the most basic condition for detection agencies.
cnas: Similar to ISO, it is a voluntary behavior of an enterprise. You can apply and obtain the conditions. Because it is a standardized rule of international organizations, it has also been promoted to international recognition.
cal: Government behavior, only the market supervision and management functions authorized by the government.
The qualifications above must not be obtained or authoritative. Whether you have the ability to engage in related work also have a lot to do with the management level of the institution. Looking at the website construction of the unit, if the content of a unit's website is not very rich, the update is not very timely, the number of access is low or even not disclosed at all, but it is only established to verify that its investment in other aspects can be imagined. It will be able to save it. Smart consumers should understand whether the certificates they issued when buying goods are authoritative, because the price of different certificates for testing units is also very different. different. But in case the test is wrong, the goods are 100 % in the hands of consumers. Especially online shopping, trust is very low, and certificates are very critical. If a merchant chose a certificate (CMA, CNAS, CAL), it shows that its strength is average, and it can be saved in terms of certificate costs. At this time, consumers' risks are very high. Therefore, when you see the certificate, you must first search the Internet to search the name of the testing agency plus the detection error. It is wise to see if there is negative news on the Internet and then decide to buy it.