China National Standards

China sparks GB Standards List

  •  China "sparks" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 13813-2023 Safety test method and judgment rules for friction sparks of metal materials used in coal mines {译}
    煤矿用金属材料摩擦火花安全性试验方法和判定规则    		 China National Standards
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