weldless steel pipe

例句：

1. 1. The weldless steel pipe isused in the construction of buildings.
   这种无焊缝钢管用于建筑施工。
2. 2. Theweldless steel pipeis more durable than traditional pipes.
   这种无焊缝钢管比传统管道更耐用。
3. 3. The weldless steel pipeis a popular choice for water supply systems.
   这种无焊缝钢管是供水系统的首选。