Fire equipment. Portable and movable devices of fire extinguishing with high-velocity submission of fire quenching matter. General technical requirements. Test methods
Plastics piping systems. Mechanical joints between fittings and pressure pipes. Test method for resistance to pull-out under constant longitudinal force
Method of measurement of output power and non-linear distortions of electronic tubes and valves under test in the conditions of low-frequency amplification
€10
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