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    1中华人民共和国国家计量技术规范 JJF 1108- 2012 石油螺纹工作量规校准规范 Calibration SpecificatioD for OCTG Thread 飞iVorkin g Gauges 20 1 2 -0 4 - 17 发布 20 12- 10- 1 7 实 施 国家质量监督检验检疫总局发布 JJF 1108-2012 石油螺纹...

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