The purpose of prebending process of longitudinal submerged arc welding pipe production line is introduced;character of roller prebending and mould press type prebending is analyzed.
螺旋埋弧焊钢管在生产过程中产生咬边的原因进行了分析,提出了针原因取的相。
The purpose of prebending process of longitudinal submerged arc welding pipe production line is introduced;character of roller prebending and mould press type prebending is analyzed.
螺旋埋弧焊钢管在生产过程中产生咬边的原因进行了分析,提出了针原因取的相。
声明:以上例句、词性分类均由互联网资源自动生成,部分未经过人工审核,其表达内容亦不代表本软件的观点;若发现问题,欢迎向我们指正。