China Testing method judging GB Standards List

China "Testing method judging" GB Standards List:

Standard Code	Standard Title	Standard Class	Order
GB/T 13813-2008	Testing method and judging rule of safety to friction spark of metallic material for coal mine 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 Testing method judging	English PDF

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