China National Standards

China Sewing gray Industry Standards English PDF List

  •  China " Sewing gray" Industry Standards English PDF List:
    • Standard  Code Standard Title Standard Class Order
    QB/T 3541-1999 (Sewing gray iron castings General technical conditions)
    缝纫机灰铸铁件通用技术条件    		 China Light Industry Standards
    Sewing gray
    English PDF

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