CONVERSIÓN DE UNA MÁQUINA ANALIZADORA DE CETANO EN ANALIZADORA DE OCTANO Y MANTENIMIENTO PREVENTIVO A 4 MÁQUINAS DE OCTANO, DE LA SUPERINTENDENCIA DE QUÍMICA, REQUERIDAS PARA DAR CUMPLIMIENTO AL SISTEMA DE CALIDAD ISO-9002 Y AL ACREDITAMIENTO DE PRUEBAS ANTE "ema"

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