Certification of welding supervisors - Structural steel welding
焊接监督员认证-结构钢焊接
发布日期:
2004-02-18
规定了向从事钢结构焊工监督工作的焊接监督员颁发证书所需的预审资格和考试范围。
Specifies the pre-examination qualifications and scope of examination required for granting of certificates to welding supervisors engaged in the supervision of welders of steel structures.