Quality supervision and inspection center for gold jewelry products. The quality supervision and inspection center of gold jewelry products is located next to the neighborhood committee of Long Ting Society in Mudan District, Heze City, Shandong Province. Purpose and business scope provide inspection guarantee for the fair trade of gold and jewelry products. The business scope includes quality supervision and inspection, arbitration inspection, fair inspection of jewelry, jade, gold and silver products, various forms of entrusted inspection, consulting services, quality and technical announcements, etc.