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GB 7957.2-2009 standard english preview version PDF file download



GB Standard Code GB 7957.2-2009
Standard Category China National Standards
GB Standard English Title Caplights for use in mines susceptible to firedamp - Part 2: Performance and other safety-related matters
GB Standard Chinese Title 瓦斯环境用矿灯 第2部分:性能和其它相关安全事项
Chinese Version Price $15 USD per 50 pages
English Translation Price About $15  per 1 page; Inquire us for detail price

 
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