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Aug.
13, 2025
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Aug.
12, 2025
19
Jul.
31, 2025
Understanding Surgical Instrument Quality Grades
Surgical instruments are categorized into different quality grades based on several factors, including the materials used, craftsmanship, and quality control standards. Surgical instruments are categorized into different quality grades based on several factors, including the materials used, craftsmanship, and quality control standards.
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20
Jul.
31, 2025
Classification of Natural Food Colorants
This article classifies natural food colorants from two dimensions: color and chemical structure. In terms of color classification, blue natural pigments include Blue Spirulina Powder, Butterfly Pea Extract, Gardenia Blue Color, etc., sourced from blue-green algae, butterfly pea flowers, gardenia fruits respectively, and applied in dietary supplements, food and beverages, etc.
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