1. Say Panaggawa na Awors .
Saray tubo na seseg so malaknab ya uusaren ed industriya na luluganan, a manseserbi bilang kabiangan parad saray frame na luluganan tan tubo na tambutso. Saray tubo na saray baras so aglabat mangiiter na atagey a biskeg tan inkapekder ed panaggawa na luluganan, noagta ontulong met pian nabawasan so belat na luluganan, napaaligwas so inka-epektibo na gasolina, tan nabawasan iray ag-onkikiwas ed karbon.
2. Makina ya Panaggawa
Saray tubo na baras so uusaren met ed panaggawa na kagawaan na makina. Dakel a kabiangan ed saray kagawaan na makina, a singa saray riles na panagmaneho, a scre a riles, giyan riles, tan koko, so gawa ed saray asero.