00777nam0-22002891i-450-99000030401040332120001010000030401FED01000030401(Aleph)000030401FED0100003040120001010d--------km-y0itay50------baitay-------001yyChemical Engineering Drawing SymbolsD.G. Austin.LondonG. Godwin Ltd.1979XV,96 p., ill., 27 cm604Austin,D. G.16109ITUNINARICAUNIMARCBK99000030401040332104 170-40IRC 1399/LDINCHDINCHChemical Engineering Drawing Symbols128804UNINAING01