GB/T 20957.2-2007 Standard PDF file download ; GB/T 20957.2-2007 Standard english preview version download

GB Standard Code	GB/T 20957.2-2007
Standard Category	China National Standards
GB Standard English Title	Test conditions for machining centres - Part 2: Geometric tests for machines with vertical spindle or universal heads with vertical primary rotary axis (vertical Z-axis)
GB Standard Chinese Title	精密加工中心检验条件第2部分：立式或带垂直主回转轴的万能主轴头机床几何精度检验(垂直Z轴)
Chinese Version Price	$15 USD per 50 pages
English Translation Price	About $15 per 1 page; Inquire us for detail price

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