制冷系统及热泵 挠性管道元件和非金属管件 要求和分类
Refrigeration systems and heat pumps—Flexible pipe elements and non-metallic tubes—Requeirements and classification
标准状态
发布于:2024-09-29
实施于:2025-04-01
废止
Refrigeration systems and heat pumps—Flexible pipe elements and non-metallic tubes—Requeirements and classification