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    Analysis of Current Market Prices of Seamless Steel OCTG in U.S.A.
    Zhao Mingliang
    2007, 36(4): 1-5.
    Abstract PDF
    Enlightenment of Domestic Steel Tube Circles by Development Strategy of Tenaris (Part Ⅱ)
    Gao Shaohua
    2007, 36(4): 6-9.
    Abstract PDF
    Three-dimensional FE Elastic-plastic Analysis for Process of Small-sized Steel Pipe-rolling with Plane Triangular Pass
    Shuai Meirong, Qin Jianping
    2007, 36(4): 10-13.
    Abstract PDF
    Experimental Research on Enlargement Tendency of Austenite Gain in Low-carbon Mn-Mo-Nb-B Series Steels
    Ren Yi, Cui Zhixin, Wang Shuang, Zhang Shuai
    2007, 36(4): 14-19.
    Abstract PDF
    Development of Oil/Gas Linepipe in L245NCS Steel for Service under Acidic Operation Conditions
    Liao Jianguo, Wang Wei, Li Maode
    2007, 36(4): 20-23.
    Abstract PDF
    Effect by Thermal Well Temperature on Casing Properties and Calculation Method for Pretension
    Wang Zhaohui, Ma Zhaozhong
    2007, 36(4): 24-27.
    Abstract PDF
    Manufacturing Equipment and Technology of State-of-the-art Φ219 mm Assel Pipe Mill
    Zhong Xidi, Wu Jiaqiang, Zhuang Gang, Li Qun
    2007, 36(4): 28-32.
    Abstract PDF
    Manufacturing Technology for Welded Pipe for Boiler Service
    He Senshuan, Wang Daqi
    2007, 36(4): 33-39.
    Abstract PDF
    Practice of O.D.-reduction Piercing Process
    Chen Hongqi, He Qiang, Yuan Wenkuan, Zhuang Gang
    2007, 36(4): 40-42.
    Abstract PDF
    Discussion on Hot-extrusion Process for Seamless Steel Tube
    Chen Qunli
    2007, 36(4): 43-46.
    Abstract PDF
    Upgrades of Technical Equipment of Spiral Weld Pipe Production Lines
    Zhou Shanzheng, Cao Gang
    2007, 36(4): 47-50.
    Abstract PDF
    Application of SC-NH1 Spiral Weld Pipe Laser Auto-tracking System
    Wang Rui
    2007, 36(4): 51-53.
    Abstract PDF
    The production outputs and import/export volumes of domestic steel tube-making circles during the period from January to May, 2007 and forecast for relevant situation in second half of the year
    Kong Lingming
    2007, 36(4): 54-57.
    Abstract PDF
    Tubing/casing defects and cases of typical failures thereof in well construction——《Research on tubing/casing standards, Analysis of tubing/casing failures and typical cases》(5-3)
    Li Pingquan
    2007, 36(4): 58-60.
    Abstract PDF
    Yangzhou Longchuan Steel Tube Co., Ltd.
    2007, 36(4): 61-61.
    Abstract PDF