Ms. Wang, the tester of Qingdao Jewelry Inspection Station, told the reporter that the inspection station will receive more than a dozen citizens who want to detect jade every day. Most of these people are not worried about the products they buy, so they would rather buy money to buy a reassurance. Since there is no fixed price for jade, the testing center only identifies the quality and variety and does not measure the value of jade. However, the inspectors often find jade shoddy, but this is mostly the jade that the citizens bought back when they went out to travel or bought at some exhibitions. According to reports, when the public purchases jade, they can look at the three signs of CMA, CAL and CNAS. CMA is a measurement certification. It is an essential qualification for the establishment of China's jewelry appraisal institutions. According to the relevant regulations of the People's Republic of China Measurement Law, the jewelry appraisal institutions established in China must have CMA certification qualifications to conduct business. CAL is the qualification of the national laboratory and is the qualification granted after passing the examination and approval by the quality supervision department at or above the provincial level. CNAS is a national accreditation body established and authorized by the National Certification and Accreditation Administration, and is responsible for the accreditation of certification bodies, laboratories and inspection agencies. According to an industry insider, in addition to the officially authorized appraisal units, there are also many third-party appraisal units on the market, but there is still no relevant supervision norms. Some appraisers can easily be fooled if they issue a false certificate. Wall hanging banner including Wood Rods Hanging Banner,Metal Rods hanging,Plastic Rods hanging,material can use fabric ,pvc or PP. Wall Haning Banner,Custom Wall Hanging Banner,Inspirational Wall Hanging Banners,Hanging Wall Art Banners Anhui LiSheng prinbanner co.,Ltd , https://www.anhuiprintbanner.com
February 23, 2020