... We Sell): Steel structure design,steel structure manufacture,steel structure build in,installation of metal doors and windows,all kinds of ... materials for steel structureRegistered Address: No. 27, Linhai Road, Zhenhai, Ningbo, Zhejiang, China (Mainland) Zip: 315207Number of ... this enable us to undertake by ourselves most of the steel structure projects as above mentioned.CertificateISO9001; ...