ʻO kēia laina hana he mea hana kūikawā no ka hana ʻana i nā paipu longitudinally welded i ka metallurgy, ke kūkulu ʻana, ka halihali, nā mīkini, nā kaʻa a me nā ʻoihana ʻē aʻe.Hoʻohana ia i nā ʻāpana kila o kekahi mau kikoʻī e like me nā mea maka, a hana i nā paipu square o nā kikoʻī e pono ai ...
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