1) Design Engineering Service 2) Secondary Deep Framing 3) Tubular Steel Structures 4) ... district A2-17, A2-20 plot. The main building of engineering for steel reinforced concrete structure. The entire basement, building A, building ... ,installation of metal doors and windows,all kinds of materials for steel structureRegistered Address: No. 27, Linhai Road, Zhenhai, Ningbo, Zhejiang ...