Six Sided Expander Pipe Rehabilitation Jacking System For Trenchless Repair With Automatic Centering And DN200 To DN700 Adjustable Diameter
                                         
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                                            Pipe Local Repair - Six--sided Expander Purpose For rapid trenchless repair of localized pipe collapses. Overview The “six--sided expander” localized repair technology precisely positions the jacking equipment at the collapse site via traction. ......                                         
                                        
                                            Langfang Baiwei Drill Co., Ltd.
                                         
                                        
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