How come choosey and Fong Fong are still not coming yet?

Girth welding procedure of oil pipe line

石油用钢管环缝焊接工艺

Study on SSCC Resistance of Girth Welding Joint with Grade X 60

X60钢环焊接头抗SSCC性能研究

Research of root welding technology and welding procedure with back-up shoes pipeline girth welding

带衬垫的管道环焊缝根焊技术及焊接工艺

Automatic UT Phase Array Technology for Girth Welding of Pipeline

管道环焊缝相控阵自动超声波检测技术

Girth Welding of Large Reel Structure Pieces of Shell and Tube Plate

大型卷筒结构筒壳与幅板环焊缝的焊接

Research on HIC Resistance Property of Girth Welding Joints on Gas Transmission Pipeline

输气管线环焊接头抗HIC性能研究

Solution to the Cracks of Girth Welding of Pipe line

管道对接环焊缝裂纹的防治措施

Quality Evaluation of the Girth Welding Connection of ERW Welding Pipe

ERW焊管环焊缝焊接接头的质量评定

Research on Titanium Alloy Girth Welding Real-Time Dull Walls X-Ray Imaging

钛合金环焊缝X射线双壁透照实时成像技术研究

Butt Girth Welding Seam X-ray Testing to Natural Gas Transmission Pipeline

天然气输送管线对接环焊缝射线检测

Phase Transformation Effects on Residual Stresses during Girth Welding of Pipes

相变对管道环焊缝残余应力的影响

Safe Heat Treatment Process in Situ for Girth Welding Seam of Tower

塔器现场对接环焊缝安全热处理工艺方法

Study on Assessment Techniques of Girth Welding Joint Defects of Oil and Gas Pipeline

长输管道环焊接头缺陷评定方法研究

Analog pipeline maintenance and emergency girth welding arc are transformed into linear welding by an experimental box.

通过一个模拟管道维抢修的实验箱，将弧形的环缝焊接转化为直线焊接。

Development of BHF-250 stainless steel girth welding machine

BHF-250不锈钢环缝焊接机床的研制

Automatic Contact Type Internal Girth Weld Tracker

接触式内环焊缝自动跟踪装置

Study on TIG Welding Quality Control for Longitudinal and Girth Weld of Ultra-thin Stainless Steel

超薄不锈钢纵、环缝TIG焊质量控制研究

Effect of Strength Match of Girth Weld on Safety of the West-East Pipeline

西气东输管道环焊缝强度匹配工艺探讨

Development of Ultrasonic Imaging Testing System for Girth Weld Flaws of Hydraulic Cylinder Used in Coal Mine

煤矿液压缸环焊缝缺陷超声成像检测系统的研制

Study on Welding Process of Girth Weld for Transportation Gas Pipeline When you want have a loop

输气管线环焊缝焊接工艺研究