Pẹtẹlẹ, Ajija okun ati okun PC ti a fi si inu (awọn okun onirin 2, awọn okun onirin 3 ati awọn onirin 7)
Ni Ilu China, Silvery Dragoni nipataki n pese awọn okun onirin 7 rẹ si ọna opopona ati awọn ọja afara oju opopona giga. Niwọn igba ti laini irin-ajo laarin ilu-ilu Beijing-Tianjin ti bẹrẹ ni ọdun 2005, Silvery Dragon ti pese 550, 000 awọn okun si diẹ sii ju awọn iṣẹ-ṣiṣe 20 pẹlu ipari lapapọ ti o ju 6000km pẹlu Zhengzhou-Xian, Harbin-Dalian, Beijing-Shanghai, Shijiazhuang-Taiyuan, Beijing-Shijiazhuang, Shijiazhuang-Wuhan, Tianjin-Qinhuangdao, Oruka Ila-oorun ni ilu Hainai ati bẹbẹ lọ. A tun ni iṣẹ ipese to dara ni 300-400km/h ikole ọkọ oju-irin giga. Nibayi, a ṣe okeere lọpọlọpọ si awọn iṣẹ akanṣe nla ni awọn orilẹ -ede ajeji, gẹgẹ bi Kuwait Jaber Causeway Project ni Kuwait, Edmonton Ring Expressway ni Ilu Kanada, GLP Nagareyama III Project ni Japan, Tel Aviv si ọna opopona Jerusalemu ni Israeli ati bẹbẹ lọ.
Indrand ati ajija okun okun PC jẹ o dara fun imọ-ẹrọ nja ti a tẹnumọ tẹlẹ eyiti o nilo agbara isopọ to lagbara ati ipari gbigbe iṣaaju-wahala. O jẹ lilo nipataki ni aabo ite, aabo ẹkọ nipa ilẹ ati atilẹyin mi. Wọn le pade awọn ibeere ti PrEN10138, BS5896, ASTMA886, JISG3536, KSD7002, bbl Ajija PC okun okun jẹ ọja tuntun ti ile -iṣẹ wa ṣe. Awọn okun ẹgbẹ rẹ jẹ okun okun okun okun ati okun waya aarin jẹ okun waya yika to fẹẹrẹ pẹlu anfani ti agbara fifẹ giga, ṣiṣu ti o dara, agbara anchoring ti o lagbara ati agbara mimu to dara julọ pẹlu nja. O jẹ yiyan akọkọ fun atilẹyin ọna opopona ati awọn iṣẹ isọdọkan ite.
Awọn ipilẹ bọtini & awọn ajohunše itọkasi
| Ifarahan | Orúkọ Dia. (Mm) | Agbara fifẹ (MPa) | Isinmi (1000h) | Awọn ajohunše |
| 7 onirin | 8.0,9.3,9.53,11.1,12.5, 12.7, 12.9, 15.2, 15.7, 17.8, 21.6 | 1770, 1860, 2000 | Isinmi kekere≤2.5% | ASTMA416, BS5896, EN10138-3, AS/NZS4672, GB/T5224, KS7002, ISO6934-4, SS213620, JIS G3536, UNE36094, ABNT NBR7483, NEN3868 |
| 3 onirin | 4.8, 5.2, 5.8, 6.2, 6.5, 7.5, 7.6, 8.6, 9.1 | Ọdun 1725, 1860-1960 | ASTMA910, GB/T5224, TISG3536, EN10138-3, AS/NZS4672 |
