Conduit for electrical wiring; arches for steel armoured conduits and plain conduits
电线导管；钢铠装导管和普通导管用拱
1956-04-01
GB/T 346-1984
通讯线用镀锌低碳钢丝
Galvanized low carbon steel wire for electric communications lines
1984-09-28
ASTM A523/A523M-21
Standard Specification for Plain End Seamless and Electric-Resistance-Welded Steel Pipe for High-Pressure Pipe-Type Cable Circuits
高压管式电缆线路用平端无缝和电阻焊接钢管的标准规范
2021-03-01
ASTM A587/A587M-25
Standard Specification for Electric-Resistance-Welded Low-Carbon Steel Pipe for the Chemical Industry
化工用电阻焊低碳钢管标准规范
2025-03-15
ASTM A1097/A1097M-22
Standard Specification for Steel Casing Pipe, Carbon, Electric-Fusion (Arc)-Welded (NPS 10 and Larger)
电熔（电弧）焊接碳钢套管（NPS 10及以上）
2022-09-01
ASTM A691/A691M-19
Standard Specification for Carbon and Alloy Steel Pipe, Electric-Fusion-Welded for High-Pressure Service at High Temperatures
高温高压用电熔焊碳和合金钢管的标准规范