ISO/TS 6521-2-2021润滑油、工业用油和相关产品(L类) D族(压缩机)第2部分:DAG、DAH和DAJ类规范（透水式旋转空气压缩机润滑油）Lubricants, industrial oils and related products (Class L) — Family D (Compressors) — Part 2: Specifications of categories DAG, DAH and DAJ (Lubricants for flooded rotary air co

ISO/TS 6521-2-2021润滑油、工业用油和相关产品(L类) D族(压缩机)第2部分:DAG、DAH和DAJ类规范（透水式旋转空气压缩机润滑油）Lubricants, industrial oils and related products (Class L) — Family D (Compressors) — Part 2: Specifications of categories DAG, DAH and DAJ (Lubricants for flooded rotary air compressors)