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Standardgraph circle template - 4 to 35mm axis - projection angles 20° (1:2,94), 30° (1:2), 40° (1:1,56), 50° (1:1,29) ST1178
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Standardgraph circle template - 4 to 35mm axis - projection angles 25° (1:2,38), 35°16' (1:1,7), 45° (1:1,14), 60° (1:1,14) ST1179
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C
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