1) Design&Engineering Service 2)secondary deep framing 3)Tubular Steel Structures 4) Space Frames 5)roof & wall materials Company IntroBasic InformationCompany Name: Zhejiang Province Erjian Steel Structure Co., Ltd. (ZEJSS)Business Type: Manufacturer, Association, Business Service (Transportation, finance, travel, Ads, etc) Product/Service(We Sell): Steel structure design,steel structure ...