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TZ 100 Three-Dimensional Display with Geometric Models Set of models for fundamentals of technical drawing
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TZ 110 Cylindrical Work Samples with Cut-Outs Parallel to Axis Comprehensive collection of models with varying levels of difficulty
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TZ 120 Cylindrical Work Samples with Slanted Cut-Outs Comprehensive collection of models with varying levels of difficulty
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TZ 130 Prismatic Work Samples with Cut-Outs Parallel to Edges Comprehensive collection of models with varying levels of difficulty
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TZ 140 Prismatic Work Samples with Slanted Cut-Outs Comprehensive collection of models with varying levels of difficulty
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