Fluid power systems and components-Connectors and associated components-Nominal outside diameters of tubes and nominal inside diameters of hoses
国家标准《液压气动系统用硬管外径和软管内径》由TC3(全国液压气动标准化技术委员会)归口上报及执行,主管部门为中国机械工业联合会。
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