China National Standards

China backstop Industry Standards English PDF List

  •  China "backstop" Industry Standards English PDF List:
    • Standard  Code Standard Title Standard Class Order
    NB/T 10947-2022 Coal mine belt conveyor backstop idler technical conditions {译}
    煤矿用带式输送机 逆止托辊 技术条件    		 China Energy Industry Standards
    backstop
    English PDF

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