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        1. EN
          ABOUT US
          關于海川
          • 01
            建筑工程施工總承包特級
            Class Special Grade General Contractor of Housing Construction
          • 02
            建筑行業(建筑工程、人防工程)甲級工程設計
            Construction industry (Construction Engineering, civil air defense engineering) grade a project design
          • 03
            鋼結構工程專業承包壹級
            Class A Special Contractor of Steel Structure
          • 04
            建筑裝修裝飾工程專業承包壹級
            Class A Special Contractor of Buildings Decoration
          • 05
            建筑機電安裝工程專業承包壹級
            Class A Special Contractor of installation of mechanical and electrical equipment
          • 06
            建筑幕墻工程專業承包壹級
            Class A Special Contractor of building curtain wall
          • 07
            市政公用工程施工總承包貳級
            Class B General Contractor of Municipal Public Works Construction
          • 08
            中華人民共和國對外承包工程資格
            Qualification for Foreign Contracting of The People's Republic of China
          • 09
            ISO 9001質量管理體系認證
            IS09001Quality Management System Certification
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