State system for ensuring the uniformity of measurements. The state special standard and all-union verification schedule for means measuring instruments of maximum-energy flux of stopping radiation at photon energy from 0,8 to 8,0 pJ (5 to 50 MeV)
Non-domestic gas-fired convective air heaters, incorporating a fan to transportation of combustion air or combustion products, nominal heat output of up to 300 kW
€10
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