Published Date: 04/06/2011

Gas welding equipment - Materials for equipment used in gas welding, cutting and allied processes (ISO 9539:2010)

$18

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PREPARACION DE LAS MUESTRAS DE "CLINKER" Y DE CEMENTO PORTLAND, PARA SU OBSERVACION AL MICROSCOPIO

$4.8

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$23.4

Published Date: 10/15/1980

Fuentes de alimentación estabilizadas de corriente continua. Ensayos (excepto radiointerferencias).

$27.6

Published Date: 01/01/2006

$22.8

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$86.4

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$15.9

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$19.8

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$45.9

AENOR UNE 43002-2 PDF

ANTEOJERIA. ESPECIFICACION DE LENTES CORRECTORAS MULTIFOCALES