Cold-drawn or cold-rolled precision inside diameter seamless steel tubes for hydraulic and pneumatic system service
全国钢标准化技术委员会(SAC/TC 183)
本标准规定了液压和气动系统设备用冷拔或冷轧精密内径无缝钢管的分类和代号、订货内容、尺寸、外形、重量及允许偏差、技术要求、试验方法、检验规则、包装、标志和质量证明书。
本标准适用于内径尺寸25 mm～500 mm的液压和气动系统设备用冷拔或冷轧精密内径无缝钢管（以下简称钢管）。
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