Interindustrial Rules On Labor Protection at Electric and Gas Welding Operations
Межотраслевые правила по охране труда при электро- и газосварочных работах |
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GOST 5632-72High-alloy steels and corrosion-resistant, … |
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PB 03-384-00Regulations for the Design, Fabrication, and … |
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SP 3.13130.2009-ver2Public Alarm-Escape Control System |