您要查找的是不是：
- X80級X80 grade
- X80級鋼管X80 grade steel pipe
- X80級管線(xiàn)鋼X80 pipeline steel
- X80級管線(xiàn)鋼管X80 grade pipeline steel pipe
- X80級Nb-Cr鋼管Nb-Cr X80 grade steel pipe
- X80級螺旋埋弧焊管X80 grade SSAW pipe
- 通過(guò)夏比沖擊試驗和落錘撕裂試驗(DWTT),測得國產(chǎn)X80級直縫埋弧焊接鋼管低溫韌性。It obtains low temperature toughness of China made grade X80 LSAW pipe by Charpy impacting test and DWTT.
- 級聯(lián)connection
- 校級field rank
- 英語(yǔ)四級English Band 4
- X80X80 grade
- X80鋼X80 steel
- 大學(xué)英語(yǔ)四級College English Band 4
- X80管線(xiàn)X80 pipeline
- 一級的firstlevel
- X80鋼卷X80 plate coil
- 船級ship' classification
- X80鋼管X80 steel pipe
- 三級片third-grade film
- X80管線(xiàn)鋼X80 pipeline steel
