welder qualification test

基本解释

Possession of a welders test certificate of "The Welder's Qualification Test Committee of China Aero-Space Industry" or an approved and international recognized standard. ;
拥有航空航天焊技术考核委员会的焊工技术合格证书，或国际认可的焊接资格证书或同等级的证书；
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The project position of welder qualification test for long transporting pipe depends on vertical down welding basically, which is namely fixed pipe with axis horizontal welding (5GX).
长输管道的焊工考试项目位置基本以向下焊为主，即水平固定全位置焊（5GX）。
The period of validity of special equipment welder qualification test is 2 years. And certificate re-examination only needs the welding operation skill test, not needing basic knowledge test.
特种设备焊工合格项目有效期为两年，复证不要求基本知识考试，只进行焊接操作技能考试。