我与么公激情完整视频_亚洲αⅴ无码天堂在线观看_涩涩视频污污成人版_成人免费毛片日韩毛片_国产精品性色综合av_中文字幕网站 五月网站_一级黄片大全_久久精品国产2020超碰_亚洲三级国产影视_av综合色区无码

Foshan Shengbang Steel Structure Co., Ltd.

11 years experience in plant design and construction

Common choice of 1875 sets of steel structure buildings

National service hotline:

0757-81002668
4News

Hainan Steel tells you: welding steel engineering practitioners General Provisions

Hits:1874 Time:2015-8-1
  

Hainan Steel tells you: welding steel engineering practitioners General Provisions


1, welding technology (welding engineer) should have appropriate qualifications; large important steel works, welding technology leader should obtain the intermediate and above titles and more than five years of practical experience in welding or construction.
2, welding quality inspection staff shall be welded professional and technical training, and shall obtain the corresponding quality inspection certificates through job training.
3, weld NDT personnel should obtain certificates issued by national professional appraisal organization, and the project should be qualified certificates and permissions in welds NDT operations.
4, welders shall be subject to examination and qualification certificates should be recognized welding operation within the scope of prohibited without certificate. Hainan Steel