1) Design Engineering Service 2) Secondary Deep Framing 3) Tubular Steel Structures 4) Space Frames 5) Roof Wall Materials Product Name:Ningbo Nianchu Machinery Co., LTDThis is a light steel structured project with double slope and single span, covers a building area of 2304 square meters. Company IntroductionBasic InformationCompany Name: Zhejiang Province Erjian Steel Structure Co., Ltd. (ZEJSS ...