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 下载 >> DRILL STRING >> 所有小类共有 4 个下载
 Drill PipeDRILL STRING | Drill Pipe 
 Finishing date：2012/5/8  File size：99
 Download | See Click the number：314
 

 Drill CollarDRILL STRING | Drill Collar 
 Finishing date：2012/5/8  File size：78
 Download | See Click the number：308
 

 Drill CollarDRILL STRING | Drill Collar 
 Finishing date：2012/5/3  File size：78
 Download | See Click the number：335
 

 KellyDRILL STRING | Kelly 
 Finishing date：2012/5/3  File size：100
 Download | See Click the number：388
 

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