China National Standards

China Universal couplings oil Industry Standards English PDF List

  •  China "Universal couplings oil" Industry Standards English PDF List:
    • Standard  Code Standard Title Standard Class Order
    SY/T 6497-2000 Universal couplings for oil drilling rig
    石油钻机用万向联轴器    		 China Oil & Gas Industry Standards
    Universal couplings oil
    English PDF

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