标 准 编 号：BS EN 12735-1-2001 简体中文标题：铜和铜合金.空调和制冷用无缝圆铜管.管道系统用管 繁体中文标题：铜和铜合金.空调和制冷用无缝圆铜管.管道系统用管 English Name：Copper and copper alloys - Seamless, round copper tubes for air conditioning and refrigeration - Tubes for piping systems
