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HS Premium Connection,Non API OCTG,Pipe For Ship and vessel

Projects

HS Premium Connection,Non API OCTG,Pipe For Ship and vessel

The biggest earth pressure balance shield in the world

HS Premium Connection,Non API OCTG,Pipe For Ship and vessel

hyst’s 27simn and 25mn cylinder products are applied in one of the biggest pressure balance shield in the world which is called shileld betha with diameter of 17.45 meters,and helped to excavate tunnel 5rs9 in seattle,usa.

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