中鼎机械一级铸铁V型铁 划线 检验 V形块 V型架 V型底座 单口四口V型铁35*35*35现货供应支持定做*

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r V型架的用途：是用来支承轴类、管类、套管类等圆柱形工件，使工件轴心线平行于本台工作面，以便找正和划线的工具。
rV型架的标准：按国家GB4972-85标准制造，一般都成对供应，是一个四棱体，四个工作面上或四个尺寸不同的90度的槽。主要用于轴类零件的检验和划线。
rV型架的规格： r

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r V型槽对底面平行度r

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r V型槽对侧面平行度r

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r V型槽对两侧面对称度r

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r V型槽对端面的垂直度r

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