He aha ke kila kila
ʻO nā mea kila i hana ʻia e pili ana i nā ʻano huahana (forged, rolled, ring rolled, extruded…), aʻo forging is a subset of wrought product form.

ʻO ka ʻokoʻa ma waena o ke kila kila a me ke kila forged
1. ʻO ka ʻokoʻa nui ma waena o ke kila i hana ʻia a me ke kila hoʻoheheʻe ʻia ʻo ka ikaika. ʻAʻole hiki ke hoʻohana ʻia ke kila i hana ʻia i nā noi kiʻekiʻe a ʻoi aku ka paʻakikī a ʻoi aku ka palupalu ma mua o ke kila forged.

2.Wrought kekahi hana wela a anu o ka metala, a no laila he wehewehe ia e ʻike ai ʻoe i ka forging, rolling, heading, upsetting, drawing, etc.

3. Forging ʻo ia ka hāmama (me ka hāmare a me ka anvil a i ʻole ka make i pani ʻia o ka metala i hoʻomehana ʻia i ka hoʻopaʻa ʻana i nā mahana.

ʻOi aku ka lōʻihi o ke kila 4.Forged i kekahi mau noi no ka mea, ʻoiai e hoʻomaka ana ke ola e like me ka hoʻolei ʻana, ua hana ʻia ka hāmare me ka hoʻohana ʻana i nā hamare hydraulic nui e hoʻoikaika i nā ʻātoma a me nā molekala o ke kila i ka alignment i ko lākou paʻi ʻana. ʻAʻole hiki ke hana ʻia ke kila i hana ʻia i kēia kaʻina hana, ʻo ia ka mea e ʻoi aku ka paʻakikī o ke kila forged a ʻoi aku ka liʻiliʻi o ka pohā i ka wā e hahau ʻia, ke hoʻohālikelike ʻia ma waena o ke kila kuʻi a me ke kila forged. Hana ʻia nā mea paʻahana a me nā koʻi i ke kila hoʻoheheʻe ʻia no ka mea ua hoʻohana ʻia lākou e kuʻi i nā mea, a ʻo ke ʻano palupalu o ke kila hoʻoheheʻe ʻia e alakaʻi iā lākou e haki wikiwiki inā ʻaʻole i hoʻopaʻa ʻia.

He aha ka paipu kila i hana ʻia
ʻO ka paipu kila i hoʻokaʻawale ʻia mai ka paipu kila, ua hoʻohana ʻia no ka pipeline a me ka ʻōnaehana paipu me nā huahana tubular o nā ana. ʻO ka paipu DN300 he mau anawaena waho ka nui ma mua o nā nui like. ʻO ka ʻokoʻa, ʻo ke anawaena o waho he ʻano helu like me ka helu nui no nā nui āpau.

ʻOi aku ka liʻiliʻi o ka paipu kila ma mua o ka paipu hao a no laila ua hoʻohana nui ʻia i ka hoʻomehana ʻana, ka hoʻoheheʻe ʻana, a me ka hoʻoheheʻe ʻana i ka ea ma mua o ka paipu ma hope. Ma muli o ke ʻano o ka hana ʻana, loaʻa ka paipu kila kila ma ke ʻano he paipu kila welded a i ʻole ka paipu welded seamless.

ʻO ka mānoanoa o ka pā a me nā paona o ka paipu hao hao, ua like ia me ka paipu hao. E like me ka paipu hao, ʻo nā mea kaupaona maʻamau ʻelua he maʻamau a ʻoi aku ka ikaika.

He aha ka seamless wrought steel pipe
Hoʻomaka ka paipu kila maʻemaʻe ma ke ʻano he ʻāpana paʻa o ke kila wela. Hoʻoikaika ʻia ma kahi ʻano e hoʻoheheʻe i ka mea i loko o kahi paipu puka, a laila e mīkini ʻia ka paipu i nā ana kūpono.

He aha ka welded wrought steel paipu
ʻO ka hana ʻana i ka paipu kila welded e pili ana i ka hoʻoneʻe ʻana i nā ʻāpana kila ma o nā wili e hana i ka mea i loko o ke ʻano tubular. A laila hele kēia mau ʻāpana i kahi mea hoʻoheheʻe e hoʻohui iā lākou i loko o kahi paipu hoʻokahi.