China National Standards

China DGB422 Industry Standards English PDF List

  •  China " DGB422" Industry Standards English PDF List:
    • Standard  Code Standard Title Standard Class Order
    QB/T 3579.3-1999 (DGB422 electric light glass Technical Data)
    DGB422型电光源玻璃主要技术数据    		 China Light Industry Standards
    DGB422
    English PDF

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