Home / Standards / GB/T 46608-2025 GB/T 46608-2025 Active Non-destructive testing of steel tubes—General rules for machine visual inspection method for surface defects 钢管无损检测 表面缺陷机器视觉检测技术通则 Standard Type GBT ICS 77.040.20 CCS H26 Status 现行 Issue Date 2025-10-31 Implementation 2026-05-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A