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Precision mechanics. Jewellery (Vocabularies) (3)

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Product and company certification. Conformity assessment (58)

Product life-cycles (3)

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Production. Production management (36)

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Rails and railway components (36)

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Sensory analysis (16)

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Services in general (2)

Services. Company organization, management and quality. Administration. Transport. Sociology. (Vocabularies) (12)

Services (2)

Session layer (7)

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Silicones (2)

Small craft (67)

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Sociology. Demography (1)

Software (111)

Soil quality and pedology in general (13)

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Solar energy engineering (161)

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Standardization. General rules (29)

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Stationary containers and tanks (44)

Stationary source emissions (121)

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Technical aspects (75)

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Telecommunications. Audio and video engineering (Vocabularies) (11)

Telecontrol. Telemetering (104)

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Television and radio broadcasting (44)

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Temperature-measuring instruments (38)

Terminology (principles and coordination) (23)

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Test conditions and procedures in general (52)

Testing (Vocabularies) (16)

Textile and leather technology (Vocabularies) (24)

Textile auxiliary materials (4)

Textile fabrics (147)

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Textiles in general (150)

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Theatre, stage and studio equipment (12)

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Transformers. Reactors (177)

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Vibration and shock with respect to human beings (39)

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Welding, brazing and soldering in general (81)

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