00801    a2200241   4500001000900000003000400009005001700013008004100030040001600071041000800087082001800095100002900113245007700142260002900219300001800248502006100266562000600327610004500333650002600378942003000404999001500434952011000449ITTG1972OSt20250115011626.0241215s1976      ||||||||||||||||||   #d  aITTG cITTG  aspa  aT 668.412 S25  aSALAS SAUCEDO, EZEQUIEL.  aMOLDEO DE FIGURAS DE PVC POR EL SISTEMA  ROTACIONAL/ cE. SALAS SAUCEDO.  aMEXICO: bEL AUTORc1976  a83 P.c21 CM.  aTESIS (I.Q.I.) -- INSTITUTO POLITECNICO  NACIONAL, 1976.  e1  aINSTITUTO POLITECNICO NACIONAL (MEXICO).  a1.PLASTICOS - MOLDEO.  2ddcc1e20090813 14:23:00  c1926d1926  00102ddc4070a1b1cGENd2009-08-13l0oT 668.412 S25p13570r2025-01-15 07:16:26tej.1w2025-01-15y1