Some parameters, such as perimeter, diameter, is very important to quality of spiral welded pipe.
螺旋管的周长、直径等参数对于螺旋管的质量非常重要。
The spiral groove of pipe is formed by press die.
采用冲压模具实现了管材螺旋槽成形。
The heat transfer characteristic of spiral-grooved pipe and its application result are introduced.
分析了螺旋槽管强化传热等特性，并介绍了应用效果。
The heat transfer characteristic of spiral-grooved pipe and its application result are introduced.
分析了螺旋槽管强化传热等特性，并介绍了应用效果。
应用推荐