Drawing sketches is the basic drill of future engineers.
画图纸是这些准工程师的基础功。
Orthopedic drill tool can be served according to the specific drawing size or sample.
骨科类钻头，工具可以按客户提供的尺寸图、或者样品生产。
Orthopedic drill tool can be served according to the specific drawing size or sample.
骨科类钻头，工具可以按客户提供的尺寸图、或者样品生产。
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