Compressors and condensing units for refrigeration. Test methods of performance determination. Part 1. Refrigerating compressors of positive displacement type
Information technology. International Standardized Profiles FVT2nn. Virtual Terminal Basic Class. Register of control object type definitions. Part 11. FVT232. Paged FEPCO (Field Entry Pilot Control Objects) No 1.
Seamless and welded ( except submerged arc-welded) steel tubes for pressure purposes. Ultrasonic testing for the verification of hydraulic leak-tightness
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