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SYMGT-401 機械制圖立體示教模型、測繪模型畫法幾何投影箱類

2019-07-23 03:15:44

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考核設備

模型材料：采用工程硬塑材料，噴塑處理，使工件美觀耐用，重量輕、方便課堂教學攜帶

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