... ,all materials are mainly steel,through the advanced design software to optimize design,as in a factory made high-precision ... connecting pieces assembled,without any reprocessing site.We can design,fabricate and install all kinds of steel structure ... : decided by customerCertificate : ISO9001:2000, ISO14001:2004,OHSAS18000Engineering design software: AutoCAD,PKPM,MTS,3D3S,Tarch,Tekla structures(Xsteel) ...