ʻO nā paipu wiliwili kila kila ka nui o ka usde ma ka ʻāina kūlanakauhale a me ka ʻenehana hoʻonaninani;ma nā kahua o ka ʻoihana māmā, lāʻau lapaʻau, hana pepa, hoʻomaʻemaʻe wai, lako wai, mīkini, a me nā mea ʻē aʻe, aia kekahi hapa nui;i ka chemical, fertilizer, petrochemical a me nā ʻoihana ʻē aʻe, ʻo Φ159mm ka kikoʻī maʻamau.ʻO nā paipu lawe haʻahaʻa ma luna aʻe;ke hoʻohana pū nei ka puʻupuʻu kaʻa i nā paipu wiliwili kila kila.

Hoʻohana nui ʻia nā paipu ʻeleʻele ʻeleʻele i "kemika ʻekolu" (kemika, fertilizer, chemical fiber), petroleum, uila mana boilers, machinery, aerospace, nuclear industry, national defense industry and other fields.