About Us
2025-08-19
◆ Obtained Grade-I Qualification for Steel Structure and Space Frame Construction from the Ministry of Housing and Urban–Rural Development
2024-07-05
◆ Hangzhou Jiaotou Invests in Longyuan Construction Group Co., Ltd. ◆ Obtains Singapore S1 Certification
2022-06-17
◆ Obtained the Grade-I Professional Contracting Certificate for Architectural Curtain Wall Engineering and the Grade-II Professional Contracting Certificate for Architectural Decoration and Finishing Engineering, and acquired the Russian GOST certification.
2022-06-17
◆ Obtained the Grade III General Contracting Qualification for Construction Engineering, and the Special Grade Qualification for the Design and Construction of Architectural Metal Roofs (and Walls).
2022-06-17
◆ Ranked among the Top 50 Enterprises in China’s Architectural Steel Structure Industry ◆ Obtained the Grade-I General Contracting Qualification for Construction Projects in the Construction Industry
2022-06-17
◆ Obtained the European Union CE Quality Certification Certificate ◆ Recognized as an AA-rated Contract-Abiding and Credit-Respecting Enterprise in Zhejiang Province
2022-06-17
◆ Recognized by the Zhejiang Provincial Department of Housing and Urban–Rural Development as an Advanced Unit for Construction Operations in Shanghai
2022-06-17
◆ Obtained Grade-I General Contracting Qualification for Construction Engineering Projects ◆ The “Dadi” trademark has been reconfirmed as a Well-Known Trademark of Zhejiang Province.
2022-06-17
◆ Accredited as a Level-2 Qualification Unit for Physicochemical Testing of Architectural Steel Structures and Metallic Materials in Zhejiang Province (including chemical analysis, mechanical property testing, and non-destructive testing—UT, PT, MT).
1997
◆ Obtained Grade-I Qualification for Steel Structure and Space Frame Construction from the Ministry of Housing and Urban–Rural Development
2025-12-16
2023
◆ Hangzhou Jiaotou Invests in Longyuan Construction Group Co., Ltd. ◆ Obtains Singapore S1 Certification
2025-12-16
2021
◆ Obtained the Grade-I Professional Contracting Certificate for Architectural Curtain Wall Engineering and the Grade-II Professional Contracting Certificate for Architectural Decoration and Finishing Engineering, and acquired the Russian GOST certification.
2025-12-16
2020
◆ Obtained the Grade III General Contracting Qualification for Construction Engineering, and the Special Grade Qualification for the Design and Construction of Architectural Metal Roofs (and Walls).
2025-12-16
2015
◆ Ranked among the Top 50 Enterprises in China’s Architectural Steel Structure Industry ◆ Obtained the Grade-I General Contracting Qualification for Construction Projects in the Construction Industry
2025-12-16
2014
◆ Obtained the European Union CE Quality Certification Certificate ◆ Recognized as an AA-rated Contract-Abiding and Credit-Respecting Enterprise in Zhejiang Province
2025-12-16
2013
◆ Recognized by the Zhejiang Provincial Department of Housing and Urban–Rural Development as an Advanced Unit for Construction Operations in Shanghai
2025-12-16
2016
◆ Obtained Grade-I General Contracting Qualification for Construction Engineering Projects ◆ The “Dadi” trademark has been reconfirmed as a Well-Known Trademark of Zhejiang Province.
2025-12-16
2012
◆ Accredited as a Level-2 Qualification Unit for Physicochemical Testing of Architectural Steel Structures and Metallic Materials in Zhejiang Province (including chemical analysis, mechanical property testing, and non-destructive testing—UT, PT, MT).
2025-12-16
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Zhejiang Dadi Steel Structure Co., Ltd.
Address: 17th Floor, Building B, No. 618 Boxue Road, Xiaoshan Science and Technology Innovation Center, Hangzhou, Zhejiang Province
Email:dadi@cnzjdd.com
©2022 Zhejiang Dadi Steel Structure Co., Ltd.
