GB/T 12469–1990 Quality assurance of welding Requirement for fusion welding joint of steel and classification for imperfection(Text of Document is in English)

01/10/1991

10P

$50.00 USD

Contents
1 Subject contents and scope of application
2 Referenced standard
3 Requirement and Defect Classification of Welding Joints
4 Basis for Defect Classification
5 Defect Inspection
6 Mark
Additional Explanation