China National Standards

China Characterization identification closures GB Standards List

  •  China "Characterization identification closures" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 35512-2017 Characterization and identification for closures of butyl rubber
    丁基橡胶瓶塞特征与鉴别    		 China National Standards
    Characterization identification closures
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