Acoustics. Determination of sound power levels and sound energy levels of noise sources using sound pressure. Engineering methods for an essentially free field over a reflecting plane
Occupational safety standards system. Personal protective equipment for users of hand-held chainsaws. Part 1. Test rig for testing resistance to cutting by a chainsaw
Petroleum and natural gas industries. Subsea production systems. Carbon and alloy steel forgings for pipe flanges, fittings, valves, and parts for high-pressure transmission service. Specifications
€10
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