HEFEI DOULLENS VACCUM &TECHNOLOGIES CO.,LTD.   

Hefei Doullens Vaccum Technology Co.Ltd. is ahigh-tech production enterprise which has a long-term focus on segment producing and handling equipments.

     
     The main business of Hefei Doullens Vaccum Technology Co.Ltd can be divided into two parts :

     First, Tunnel construction field 'Vacuum segment erectors of large diameter TBM. Vacuumsegment crane of large diameter TBM.all kinds of TBMspare parts.
     
     Second, segment production field Segment automation production lines, segment moulds,vacuum beams(suction cups). horizontal clamps,verticalclamps，hand-hole clamps,segment turning machine ,pullout/bending testrigs.segment permeability testrigs.segment assembly test rigs, segment keel welding rigs.scgment embcddcd parts etc.
    

Our products have been widely used in the fields of railtransportation tunnels,highway tunnels.comprehensivegalleries and so on. With high quality products and perfectafter-sales service, we have won unanimous praise fromcustomers.

Facing the future, Doullens will follow the market.Relying onour technological advantages and independent innovation.we'll continue to optimize product lines and expanding thescale of production and try our best to make Doullensbecome a distinguished reputation and first-class brandtunnel engineering equipment supplier.