DONGA

QUALITY & TECH

Technology and Certification Status

División Contents Certification Authority
Constr uction Regist ration Card Mechanical Equipment Construction Saha-gu Office, Busan Metropolitan City
Up-and-down Waterworks Project Saha-gu Office, Busan Metropolitan City
Steel Structure Construction Project Saha-gu Office, Busan Metropolitan City
Steel Reinstallation Project Saha-gu Office, Busan Metropolitan City
Metal Structure and Window Construction Project Saha-gu Office, Busan Metropolitan City
ISO Certi ficate ISO 9001:2007 Certificate ABS Quality Evaluation,inc.
ISO 14001:2004 Certificate Korea Quality Foundation
KS Certif icate Water Butterfly Valve Korean Standards Association
Fitted Certif icate for Wate Water Butterfly Valve Korea Waterworks Association
Water-Drain Valve Korea Waterworks Association
Certific ate of Sanitary Safety Standa rds Water Butterfly Valve Korea Waterworks Association
Water-Drain Valve Korea Waterworks Association
Relia bility Certifi cate Butterfly Valve/Water Supply(Model : 300A) Korea Institute of Machinery and Materials
Gate Valve/Water Supply(Model : 200A) Korea Institute of Machinery and Materials
Water Resou rces Suppli er's Certifi cate Water Butterfly Valve Korea Water Resources Corporation
Double Sealing Butterfly Valve ∠ 1500mm Korea Water Resources Corporation
Water Butterfly Valve Korea Water Resources Corporation
ETC. Presidential Citation Ministry of Government Administration and Home Affairs
Accreditation of the Institute for Corporate Subsidiary Studies Korea Industrial Technology Promotion Association
División Contents Certification Authority
Patent Card Inclined Disc Type Check Valve Patent Office
Eccentric Non-Resistance Valve Patent Office
Ball Valve Patent Office
Two Cases related to the Main Screen of a Oscillator Patent Office
the Rake-off Protection System of a Oscillator. Patent Office
Front Screen for preventing the passage of the Excavator's Canyon Patent Office
a Water Pump for the Gate of a Waterway Patent Office
Two Cases related to Watertightness Structure of Floodgates for Waterways Patent Office
Internal observable Disc Valve Patent Office
Conduction Hydrologic for Waterways Patent Office
Two Cases related to Screw Shaft of Airway Hydrologer Patent Office
Design Certifi cate Disc for Double-blocking Butterfly Valves Patent Office
Perfor mance Certifi cate Rotary Oscillator quipped with a Rake Strain Protection Device
(DA-BPD-2000-6000)		 Small and Medium Business Administration
ETC. Inno-biz Confirmation of Technology Type Small and Medium Business Administration
Venture Business Confirmation Small and Medium Business Administration
Qualified Company Certificate (24 Items) Five Power Generation Companies
Certificate of excellent business partners of Doosan Heavy Industries & Construction Co. (for 4years) Doosan Heavy Industries & Construction Co.