Home / Standards / GB/T 342-1997 GB/T 342-1997 Abolished Dimension，shape，mass and tolerance for cold-drawn round，square and hexagonal steel wires 冷拉圆钢丝、方钢丝、六角钢丝尺寸、外形、重量及允许偏差 Standard Type GBT ICS 77.140.65 CCS H49 Status 废止 Issue Date 1997-03-17 Implementation 1997-09-01 Responsible Dept 中国钢铁工业协会 Drafting Unit 中国钢铁工业协会