ʻO ka paipu kila hili pololei he paipu kila nona ke kuʻina wiliwili e like me ka ʻaoʻao longitudinal o ka paipu kila. He mea maʻalahi ke kaʻina hana o ka paipu kila seam pololei, me ka hana kiʻekiʻe o ka hana, ke kumu kūʻai haʻahaʻa a me ka hoʻomohala wikiwiki. ʻOi aku ka ʻoi aku o ka ikaika o nā paipu wiliwili spiral ma mua o nā paipu wili wili pololei.
Hiki ke hoʻokaʻawale ʻia nā paipu kila seam pololeipaipu kila ERWa wiliwili ʻia nā paipu kila humuhumu pololei (Paipu LSAW) e like me ke kaʻina hana.
ʻO ka lōʻihi o ka paipu kila seam pololei he 6000 mm-1200 mm.
ERW Puka paipu: 21.3mm i 508mm; LSAW Paipu puni: 406mm a 2020mm
Ka manawa hoʻouna: Jan-21-2022