污污污www精品国产网站_六十路av_午夜天堂av_台湾佬综合网_成人免费版欧美州_超碰色偷偷_西西444www无码大胆_亚洲拍拍视频_日韩欧美天堂_av在线网页_aaa亚洲精品_欧美一级爽片_精品在线一区二区_女郎av在线_午夜一区二区三区四区

Steel plant welding process

Foshan Steel plant welding process
Such issues directly affect the quality of the project are the main issues, so this type of problem must use professional testing tools through a professional testing company can detect, judge it, generally based on the shortcomings of the type of weld into slag, not fusion and pores.

Welding processes. The processes are hidden works, one of the most easy to attack process quality problems, from 2004 a company's product quality report statistics show that the onset of the process of quality problems: Because the quality of welding seam failure rates resulting in up to 80% , followed the wrong procedure is due to operational and technical issues of the operator and the resulting weld quality problems accounted for about 10%.