China National Standards

China Insulation copper pipe Industry Standards English PDF List

  •  China "Insulation copper pipe" Industry Standards English PDF List:
    • Standard  Code Standard Title Standard Class Order
    YS/T 670-2021 Insulation copper pipe for connection of air conditioner{译} {译}
    空调器连接用保温铜管    		 China Non-ferrous Metal Industry Standards
    Insulation copper pipe
    English PDF

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