China National Standards

China Seawater cultured pearl GB Standards List

  •  China "Seawater cultured pearl" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 35940-2018 Seawater cultured pearl oysters and classification of pearls
    海水育珠品种及其珍珠分类    		 China National Standards
    Seawater cultured pearl
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