摘要
介绍了方矩形管的成型工艺，对“直接成方”和“由圆成方”
The forming technology of square pipe is introduced and “directly forms to square” and “from round forms to square” technology had been compared and analyzed.
出处
《焊管》
1999年第4期50-52,共3页
Welded Pipe and Tube
关键词
方形管
矩形管
焊管
成型
生产工艺
square pipe rectangular pipe welded pipe forming production technology
