China National Standards

China 3：Closed GB Standards List

  •  China "3：Closed" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 7190.3-2019 Mechanical draft cooling towers—Part 3：Closed circuit cooling towers
    机械通风冷却塔 第3部分：闭式冷却塔    		 China National Standards
    3：Closed
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