Pakadali pano, pali ma seti 45 a mafakitole ozungulira mosalekeza omwe amangidwa kapena akumangidwa ndipo ayamba kugwira ntchito ku China. Omwe akumangidwa makamaka akuphatikizapo seti imodzi ya Jiangsu Chengde Steel Pipe Co., Ltd., seti imodzi ya Jiangsu Changbao Pleasant Steel Pipe Co., Ltd., ndi Henan Anyang Longteng Heat Treatment Materials. Seti imodzi ku Hebei Chengde Jianlong Special Steel Co., Ltd. ndi seti imodzi ku Hebei Chengde Jianlong Special Steel Co., Ltd. Tsatanetsatane wa kapangidwe ka mafakitole ozungulira mosalekeza akuwonetsedwa mu Table 1. Kuphatikiza apo, makampani angapo akukonzekeranso kumanga mafakitole atsopano ozungulira mosalekeza.
| Gome 1 Kapangidwe ka pano ka makina opukutira mosalekeza | |||||||
| Dzina Lakampani | Gridi ya Malamulo a Ogwira Ntchito /mm | kuyika mu zaka zopanga | Chiyambi | Kutha / (10,000 ta) ③ | Mtundu wopitilira wopukutira mphero | Mafotokozedwe a Zamalonda / mm | Njira yosinthira mipukutu |
| Baoshan Iron & Steel Co., Ltd. | Φ140 | 1985 | Germany | 50/80 | Ma raki 8 okhala ndi ma roller awiri + oyandama | Φ21.3~177.8 | Kusintha mbali ziwiri |
| Tianjin Pipe Corporation Co., Ltd. | Φ250 | 1996 | Italy | 52/90 | Ma racks 7 okhala ndi ma roller awiri + limiter | Φ114~273 | Kusintha mbali ziwiri |
| Hengyang Valin Steel Tube Co., Ltd. | Φ89 | 1997 | Germany | 30/30③ | Ma raki 6 okhala ndi ma roller awiri + theka loyandama | Φ25~89(127) | Kusintha mbali imodzi |
| Inner Mongolia BaoTou Steel Union Co.,Ltd. | Φ180 | 2000 | Italy | 20/35 | Ma raki 5 okhala ndi ma roller awiri + limiter | Φ60~244.5 | |
| Tianjin Pipe Corporation Co., Ltd. | Φ168 | 2003 | Germany | 25/60 | VRS+5 rack ma rollers atatu + oyandama pang'ono | Φ 32~168 | Ngalande ya Axial |
| Gulu la Shuangan Seamless Steel Pipe Co., Ltd | Φ159 | 2003 | Germany | 16/25 | Ma raki 5 okhala ndi ma roller awiri + limiter | Φ73~159 | Kusintha mbali imodzi |
| Hengyang Valin Steel Tube Co., Ltd. | Φ340 | 2004 | Italy | 50/70 | VRS+5 chimango cha ma roller awiri + kuyimitsa | Φ133~340 | |
| Gulu la Pangang Chengdu Steel&Vanadium Co., Ltd. | Φ340② | 2005 | Italy | 50/80 | VRS+5 chimango cha ma roller awiri + kuyimitsa | Φ139.7~365.1 | |
| Nantong Special Steel Co., Ltd. | Φ159 | 2005 | China | 10/10 | Ma racks 8 okhala ndi ma roller awiri + limiter | Φ73~159 | |
| WSP Holdings Ltd. | Φ273② | 2006 | China | 35/50 | Ma raki 5 okhala ndi ma roller awiri + limiter | Φ73~273 | |
| Tianjin Pipe Corporation Co., Ltd. | Φ460 | 2007 | Germany | 50/90 | Ma raki 5 okhala ndi ma roller atatu + limiter | Φ219~460 | Ngalande ya Axial |
| Gulu la Pangang Chengdu Steel&Vanadium Co., Ltd. | Φ177 | 2007 | Italy | 35/40 | VRS+5 chimango chozungulira zitatu + choyimitsa | Φ48.3~177.8 | |
| Tianjin Pipe Corporation Co., Ltd. | Φ258 | 2008 | Germany | 50/60 | Ma racks 6 okhala ndi ma roller atatu + limiter | Φ114~245 | Kusintha mbali imodzi |
| Gulu la Shuangan Seamless Steel Pipe Co., Ltd | Φ180 | 2008 | Germany | 25/30 | Chojambulira cha VRS+5 chozungulira mafelemu atatu | Φ73~278 | |
| Kampani ya Anhui Tianda Oil Pipe Limited | Φ273 | 2009 | Germany | 50/60 | Ma racks 6 okhala ndi ma roller atatu + limiter | Φ114~340 | |
| SHANDONG MOLONG PETROLEUM CO., LTD. | Φ180 | 2010 | China | 40/35 | VRS+5 chimango chozungulira zitatu + choyimitsa | Φ60-180 | Ngalande ya Axial |
| Liaoyang Ximulaisi Petroleum Special Pipe Manufacturing Co.,Ltd. | Φ114② | 2010 | China | 30/20 | Ma raki 6 okhala ndi ma roller awiri + limiter | Φ60.3-140 | Kusintha mbali imodzi |
| Yantai Lubao Steel Pipe Co., Ltd. | Φ460 | 2011 | Germany | 60/80 | Ma raki 5 okhala ndi ma roller atatu + limiter | Φ244.5~460 | Ngalande ya Axial |
| Kampani ya Heilongjiang Jianlong Iron and Steel Co., Ltd. | Φ180 | 2011 | Italy | 45/40 | Ma racks 6 okhala ndi ma roller atatu + limiter | Φ60~180 | |
| JINGJIANG SPECIAL STEEL CO., LTD. | Φ258 | 2011 | Germany | 50/60 | Ma racks 6 okhala ndi ma roller atatu + limiter | Φ114~340 | Kusintha mbali imodzi |
| Xinjiang Bazhou Seamless Oil Pipe Co., Ltd. | Φ366② | 2011 | China | 40/40 | Ma racks 6 okhala ndi ma roller atatu + limiter | Φ140-366 | |
| Kampani ya Inner Mongolia Baotou Steel Co., Ltd. Chitoliro cha Chitoliro | Φ159 | 2011 | Germany | 40/40 | Ma racks 6 okhala ndi ma roller atatu + limiter | Φ38~ 168.3 | Ngalande ya Axial |
| Φ460 | 2011 | Germany | 60/80 | Ma raki 5 okhala ndi ma roller atatu + limiter | Φ244.5~457 | ||
| Linzhou Fengbao Pipe Industry Co., Ltd. | Φ180 | 2011 | China | 40/35 | Chojambulira cha VRS+5 chozungulira mafelemu atatu | Φ60~180 | |
| Malingaliro a kampani Jiangsu Tianhuai Pipe Co.,Ltd | Φ508 | 2012 | Germany | 50/80 | Ma raki 5 okhala ndi ma roller atatu + limiter | Φ244.5~508 | |
| Malingaliro a kampani Jiangyin Huarun Steel Co.,Ltd. | Φ159 | 2012 | Italy | 40/40 | Chojambulira cha VRS+5 chozungulira mafelemu atatu | Φ48~178 | |
| Hengyang Valin Steel Tube Co., Ltd. | Φ180 | 2012 | Germany | 50/40 | Ma racks 6 okhala ndi ma roller atatu + limiter | Φ114~180 | Kusintha mbali imodzi |
| Malingaliro a kampani Jiangsu Chengde Steel Tube Share Co.,Ltd. | Φ76 | 2012 | China | 6 | Ma raki atatu okhala ndi ma roller atatu + limiter | Φ42~76 | |
| Tianjin Master Seamless Steel Pipe Co., Ltd. | Φ180② | 2013 | China | 35 | Ma raki 6 okhala ndi ma roller awiri + limiter | Φ60.3~177.8 | |
| Linzhou Fengbao Pipe Industry Co., Ltd. | Φ89 | 2017 | China | 20 | Ma racks 6 okhala ndi ma roller atatu + limiter | Φ32~89 | |
| Kampani Yogulitsa Zida Zapadera za Liaoning Tianfeng | Φ89 | 2017 | China | 8 | Njira Yaifupi 4 Rack MPM | Φ38~89 | |
| Shandong Panjin Steel Tube Manufacturing Co., Ltd. (pansi pa Shandong Luli Group) | Φ180 | 2018 | China | 40x2 ④ | Ma raki 6 okhala ndi ma roller awiri + limiter | Φ32~180 | |
| Φ273 | 2019 | China | 60x2 ④ | Ma raki 5 okhala ndi ma roller atatu + limiter | Φ180~356 | ||
| Φ180 | 2019 | China | 50x2 ④ | Ma racks 6 okhala ndi ma roller atatu + limiter | Φ60~180 | ||
| Linyi Jinzhengyang seamless steel chubu co.,ltd. | Φ180 | 2018 | China | 40 | Ma racks 6 okhala ndi ma roller atatu + limiter | Φ60~180 | Ngalande ya Axial |
| Chongqing Iron&Steel(Group)Co.,Ltd. | Φ114 | 2019 | China | 15 | Ma raki 6 okhala ndi ma roller awiri + limiter | Φ32~114.3 | Kusintha mbali imodzi |
| Dalipal Holdings Limited | Φ159 | 2019 | China | 30 | Ma raki 5 okhala ndi ma roller atatu + limiter | Φ73~159 | |
| Hengyang Valin Steel Tube Co., Ltd. | 89 | 2019 | China | 20 | Ma racks 6 okhala ndi ma roller atatu + limiter | Φ48~114.3 | |
| Kampani ya Inner Mongolia Baotou Steel Co., Ltd. Chitoliro cha Chitoliro | Φ100Retrofit | 2020 | China | 12 | Ma racks 6 okhala ndi ma roller atatu + limiter | Φ25~89 | Ngalande ya Axial |
| Malingaliro a kampani Jiangsu Chengde Steel Tube Share Co.,Ltd. | Φ127 | tikukonza | China | 20 | Ma raki 5 okhala ndi ma roller atatu + limiter | Φ42~114.3 | Kusintha mbali imodzi |
| Anyang Longteng Heat Treatment Material Co., Ltd. | Φ114 | tikukonza | China | 20 | Ma racks 6 okhala ndi ma roller atatu + limiter | Φ32~114.3 | |
| Chengde Jianlong Special Steel Co., Ltd. | Φ258 | tikukonza | China | 50 | Ma racks 6 okhala ndi ma roller atatu + limiter | Φ114~273 | |
| Malingaliro a kampani Jiangsu Changbao Pulaisen Steeltube Co., Ltd. | Φ159 | tikukonza | Germany | 30 | Ma racks 6 okhala ndi ma roller atatu + limiter | Φ21~159 | Kusintha mbali imodzi |
| Dziwani: ① Chipangizo cha Φ89 mm chasinthidwa kuchoka pa choyambira chozungulira chopitirira kawiri kukhala chozungulira chopitirira katatu; ② Chipangizocho chatsekedwa; ③Kutha kopangidwa / mphamvu yeniyeni; ④Pali ma seti awiri motsatana. | |||||||
Zomwe zili pamwambapa zikuchokera m'nkhani yakuti "Ziyembekezo za Kupititsa Patsogolo kwa Ukadaulo Woyendetsa Ma Tube Wosalekeza", yomwe idasindikizidwa mu kope loyamba la "Steel Pipe" mu 2021..
Nthawi yotumizira: Julayi-12-2022
