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Ruling Pen

A ruling pen is a drawing instrument for drawing with ink or with other drawing fluids.

1、[测]直线笔

...disk ruling 圆盘式划线ruling pen 直线笔rule 规则 ...

2、直线笔

...disk ruling 圆盘式划线ruling pen 直线笔rule 规则 ...

ruling g pen绘图钢笔

cross joint ruling pen滑片墨线笔

double ruling pen双曲线笔

double e ruling pen双曲线笔

blade ruling pen鸭嘴笔

jackknife ruling pen扳开式鸭嘴笔

cro joint ruling pen滑片墨线笔

automatic ruling pen自动划线笔

hatching pen ruling pen划线笔

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