Ua kapa ʻia ʻo ERW welding round pipes e like me Electric Resistance Welded Pipes. ʻO kēia ʻano o nā paipu kila a me nā paipu i hoʻohana nui ʻia i nā ʻano ʻano like ʻole e like me ka hana ʻenekinia, pā, scaffolding, laina paipu a me nā mea ʻē aʻe. ka mānoanoa o ka pā, a me nā anawaena o nā paipu i pau.
