noun
seamless steel pipe
Technical term used in engineering and manufacturing for steel pipes without a welded seam.
このプラントでは継ぎ目なし鋼管が使われている。
Seamless steel pipes are used in this plant.
Standard technical spelling for seamless steel pipe.
Variant spelling using 無し instead of なし; less common but still seen in technical contexts.
Compound of 継ぎ目 (seam, joint) + なし (without) + 鋼管 (steel pipe).