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If stones could speak: Didactic file on war memorials
Monuments, plaques or street names are of social and historical importance. They provide us with important information about persons or events, the past in general or that of the city, municipality or region where we live. They also illustrate …
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Signs and lasoefeningen: unfoldings of tubes
This is a series of integrated exercises. You make students with the technical drawings of the tubes in the unfolding reality.
- 701 Square eccentric reducer
- 702 Elbow 90 °
- 703 Angle tubes centered
- 704 Angle tubes eccentrically
- 705 Pipes unequal …
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NEN EN 1089-3: Color-coded gas cylinders
Standards are regularly revised. Check whether this document can be used with the latest version.
This standard describes the color code of gas cylinders. Since 1 July 2006, bottle heads are required to wear this NEN_EN color coding. You will also …
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Working safely during welding or cutting
Pdf document with specific attention to safety measures and equipment for safe welding and cutting.
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