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    Chairman Speech
    Group Profile
    Honor&Qualification
    Group Events
    Group Planing
    Factory
    Production Equipments
    Quality Inspection
    Product Standard
       
     
    Quality Inspection  
    Product Test&Inspection:  
    1, Raw Material Test 2, Sample Pipe Trial-manufacture
    3, Production Process Quality Control 4, Finished Product Inspection Control
    5, Site Acceptance Inspection