Shaoxing Bureau of Quality and Technical Supervision detects the authenticity of a piece of 10g jade brave, which is divided into two certificates with different charging standards.

These two certificates are called "big certificate" and "small certificate" in the industry. The small card is about the size of a business card (slightly larger). It belongs to a jewelry company in the industry, and dozens of pieces are submitted for inspection in batches. Generally, according to the VIP level, 5 yuan charges 10 yuan.

Big card is a standard appraisal certificate. Generally, 40 yuan is charged for each card, and it takes about two hours from inspection to evidence collection.