Woodworking saw and sawing processing knowledge

1, saw (knife) Sawing is the oldest and most extensive processing method used in wood cutting. Sawing is mainly used to split or cut wood into two parts. There are many types of saws, and most saws are made up of saw blades and serrations made on the edges. The saw is basica ---MORE---

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Safety of IC card chips in AFC system

0 Preface The Beijing Rail Transit Line began to receive passenger tickets in 1971, and the existing three lines have been using manual ticket sales. On December 31, 2003, the opening and use of the automatic ticket checking system for Metro Line 13 (City Rail Line) ended the history of Beijing Ra ---MORE---

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Exploration of metal barrel flanger (2)

Exploration of metal barrel flanger (2) There is also a horizontal double-head hydraulic flanger which is also a rolling type flanger. Its shape is similar to that of Figure 4. However, both the feed motion and the headbox feed movement are hydraulically completed, so the structure is simple in F ---MORE---

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Full description of medicinal glass bottles

New medicinal glass packaging: Type I glass molded bottles: mainly used for packaging plasma, albumin, globulin and other products, specifications in 20ml-100ml. Type I glass control bottles: mainly used for packaging lyophilized biological agents, powder injections, vaccines, genetic engineering ---MORE---

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Experts point out that resisting plastic bottled water …

Last year, the United States "New York Times" recently published reports accusing the bottled water of consuming oil and polluting the environment. It called on Americans to abandon bottled water and drink tap water. According to reports, the United States consumes as much as 4 billion ga ---MORE---

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The skill of planing all kinds of wooden thin wood dete…

The three-sided saw cuts the wooden side: The suitable diameter is 40-60em, the yield is 50%-52%, and the number of wood fixed on the planer can only be one or two, and the productivity is low. The rounded four-sided saw cuts the split wood side: it can be firmly fixed on th ---MORE---

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Self-test: Do you see an Alpine climber?

Alpine climbing is a mountaineering style originating in the European Alps. It was born in the Alps in Europe in the 18th century and became a worldwide activity. It does not have a strict definition, but it usually refers to climbing in individual or two or three-person squads in a high mountain ---MORE---

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