Copper - Seamless tubes for air-conditioning and refrigeration
空调和制冷用无缝铜管

2020-06-26

Standard Specification for Seamless Copper-Iron Tube for Air Conditioning and Refrigeration
空调和制冷用无缝铜铁管标准规范

2021-02-15

Copper and copper alloys. Seamless, round tubes for air conditioning and refrigeration-Tubes for equipment
铜和铜合金 空调和制冷用无缝圆管

2016-06-30

Standard Specification for Seamless Copper Tube for Air Conditioning and Refrigeration Field Service
空调和制冷现场服务用无缝铜管的标准规范

2023-10-01

空调与制冷系统阀件用铜及铜合金无缝管
Seamless copper and copper alloys tube for valves on air-conditioning and refrigeration system

2021-12-31

Copper and copper alloys. Seamless, round tubes for air conditioning and refrigeration-Tubes for piping systems
铜和铜合金 空调和制冷用无缝圆管

2020-03-31

Standard Specification for Seamless Copper-Iron Tube for Air Conditioning and Refrigeration Field Service
空调和制冷现场用无缝铜铁管标准规范

2021-02-15

Copper and copper alloys - Seamless, round tubes for air conditioning and refrigeration - Part 2: Tubes for equipment
铜和铜合金.空调和制冷用无缝圆管.第2部分:设备用管

2016-11-01

COPPER AND COPPER ALLOYS. SEAMLESS, ROUND COPPER TUBES FOR AIR CONDITIONING AND REFRIGERATION. PART 1: TUBES FOR PIPING SYSTEMS.
铜和铜合金 空调和制冷用无缝圆形铜管 第1部分:管道系统用管道

2001-11-22

制冷及热交换器用铜及铜合金无缝翅片管直坯管
Straight seamless base tube of copper and copper alloy fin air-conditioning and heat exchanger

2013-04-25

COPPER AND COPPER ALLOYS. SEAMLESS, ROUND COPPER TUBER FOR AIR CONDITIONING AND REFRIGERATION. PART 2: TUBES FOR EQUIPMENT.
铜和铜合金 空调和制冷用无缝圆形铜管 第2部分:设备用管

2001-11-23

Standard Specification for Welded Copper Tube for Air Conditioning and Refrigeration Service
空调和制冷服务焊接铜管标准规范

2021-01-01