China National Standards

China 45：Box GB Standards List

  •  China "45：Box" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 30839.45-2015 Energy consumption grading for industrial electroheat installations— part 45：Box-type quenching resistance furnace
    工业电热装置能耗分等 第45部分：箱式淬火电阻炉    		 China National Standards
    45：Box
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