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Hoʻolauna hale hana
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| Mea hoʻolele Centrifugal | ____ | Paipu hoolei, paipu o na kila haahaa | |||
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| Hoʻopau | ____ | Paipu huikiʻi kiʻekiʻe, paipu pā mānoanoa, paipu paila |
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| Paʻi paʻi | ____ | Elongator | ____ | Paʻi pahu | ____ | Paipu kaula, paipu kalepa, paipu boiler |
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Ka hoolei ana | ____ | Paʻi paʻi | ____ | ____ | ____ | Paʻi kaha kiʻi | ____ | ʻO nā pahu kaomi |
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| Assel mill | ____ | Paipu hāʻawe huila, paipu pā mānoanoa |
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| Assel mill | ____ | Paipu huila, paipu pā mānoanoa |
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Ka hoolei poepoe mau | ____ | ____ | ____ | hale wili ʻo Stiefel | ____ | hale wili Diescher | ____ | ʻO ka pahu huila wili, paipu kalepa |
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| wili pulu | ____ | Paipu laina, paipu drill, paipu paila |
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| wili mau | ____ | Line pipe, drill pipe, boiler tube |
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Hana kila | ____ | Ka hoolei ana | ____ | Hale wili pua | ____ | Hale wili semifinishing |
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| Ka hoolei ana | ____ | Paʻi paʻi | ____ | ʻO Mannesmann cross roll piercing mill |
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| Ka hoolei papa mau | ____ | ʻO ka wili kaʻa kaʻa | ____ | Paipu kinoea, paipu kalepa, paipu hale |
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| ____ | Paipu laina, paipu pololei, paipu kūkulu |
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| Ka hoolei ana | ____ | Hale wili paʻi | ____ | Hale wili pā | ____ | Paipu laina, paipu kūkulu |
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Hana kila | ____ | Ka hoolei papa mau | ____ | ____ | ____ | ʻO ka wili kaʻa kaʻa | ____ | Paipu kinoea, paipu kalepa, paipu hale |
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| ____ | Paipu laina, paipu pololei, paipu kūkulu |
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| ____ | Paipu laina, paipu kūkulu |
Hunan Steel Co., Ltd nona 8 sets o paipu kila maʻemaʻe ʻōwili wela production line and 6 sets of cold drawn seamless steel pipe production line with annual production capacity of 250,000 tons, the size range is from 73mm to 630mm. manufacturing ERW Steel Pipe, SSAW Steel Pipe, LSAW Steel Pipe, SMLS Steel Pipe,Oil Country Tubular products,Hollow Sections,Boiler Steel Pipe,Alloy Steel Pipe,paipu kila kila and Pipe Fittings.
ʻO ke kaʻina hana mandrel hoʻomau a me ke kaʻina hana pahu pahu i ka nui o ka nui mai approx. 21 a 178 mm ke anawaena o waho. ʻO ka multi-stand plug mill (MPM) me ka hoʻomalu ʻia (kaohi ʻia) lana mandrel bar a me ka plug mill process i ka laula nui mai approx. 140 a 406 mm ke anawaena o waho. ʻO ke kaʻina ʻōwili keʻa a me ke kaʻina ʻōwili pilger ma ka laulā nui mai approx. 10.3mm i 812 mm(1/8" a 32") anawaena waho.
ʻOlokaʻa ia i ke kaula a i ʻole ka pā a laila wili i ka paipu i nā paipu kila me ka wili HF a i ʻole ka kuʻi ʻana i ke arc submerged. ʻO ka mīkini hana paipu weld i haku ʻia me ka uncoiler, ka mīkini pae, ka welder butt, ka loop, ka mīkini hoʻopololei a me nā mea hana kiʻekiʻe. ʻO kā mākou laina hana hou a me kēlā me kēia ʻāpana hoʻokahi o ka laina hana ʻaʻole ia wale nō ka hoʻokele waiwai akā hiki ke hana. Hoʻohana ka laina hana piha i ka ʻenehana ZTF i ka wā e hana ai i ka paipu pōʻai, e hoʻemi ka mea kūʻai aku i ka 60% o ka lilo ma ka mea hana.