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Shannon Austin
5 years ago
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GREETING Welcome to DONGSIN EF DONGSIN EF was established in July

FLEXIBLE HOSE and RUBBER EXPANSION JOINT for offshore & ship

In Nov 2009, we obtained certificate of Authenticity about RUBBER

In May 2010, we also got patent of EXPANSION JOINT, SILICONE JOINT

2 GREETING Welcome to DONGSIN EF DONGSIN EF was established in July We product and supply high quality METAL EXPANSION JOINT, FLEXIBLE HOSE and RUBBER EXPANSION JOINT for offshore & ship buildings. Industry facilities and plants. In Nov 2009, we obtained certificate of Authenticity about RUBBER EXPANSION JOINT from DUPONT in U.S.A for the first time in Korea. In May 2010, we also got patent of EXPANSION JOINT, SILICONE JOINT which can stand under movement and MISS ARRANGEMENT and Fire-Resistant RUBBER EXPANSION JOINT. DONGSIN EF guarantees that we do not rely on imported products and we supply competitive product based on Excellent quality and technique. President Hwa-Jin, Oh

3 OVERVIEW Company Name President DONGSIN EF Co. Hwa-Jin, Oh Established Date July 25, 2009 Factory Size (Square meter) Head Office Factory Location #205 Hwaseong B/D, Mangwon-dong, Mapo-Gu, Seoul, Korea TEL FAX Seokjeong-ri, Daegot-myeon, Gimpo-si, Gyeonggy-do, Korea TEL ~6 Main Product Gimpo-si 500 METAL / NON-METAL EXPANSION JOINT RUBBER EXPANSION JOINT METAL FLEXIBLE HOSE

HISTORY Since 2009 ~ 2009 2010 07 Establishment of DONGSIN EF co.

supplier for Samsung Heavy Industries 03 Signed up for Samsung Engineering and Lotte Construction 06 Signed up supplier for ENTOB - Supplied

4 HISTORY Since 2009 ~ Establishment of DONGSIN EF co. 11 Obtained ISO 11 Acquired Quality Management System ISO9001 Certificate of qualification about Rubber Expansion Joint from Dupont 12 Signed up supplier for Samsung Heavy Industries 03 Signed up for Samsung Engineering and Lotte Construction 06 Signed up supplier for ENTOB - Supplied EXPANSION JOINT to POSCO 10 Obtained patent - Fire-Resistant Rubber Expansion Joint - Low Vibration Silicon Expansion Joint Signed up for UAE TAKREER 02 Obtained ISO Signed up for GS Construction 04 Supplied HONAM Petrochemical

5 ORGNIZED PRESIDENT MANAGEMENT PRODUCT QUALITY SALES PRODUCT INSPECT GENERAL AFFAIRS DESIGN SERVICE

6 PRODUCT MAIN PRODUCTS PLANT SHIP BUILDING Chemical Pipe Acid Pipe Steam Pipe Liquid Pipe Gas Pipe High pressure Pipe Metal Expansion Joint RUBBER Expansion Joint Metal Flexible Hose Quick Coupling Hose Non-Metal Expansion Joint Silicone Expansion Joint Drill Ship General Ship Battle ship

7 PRODUCT TEFRON LINED EXPANSION JOINT SILICONE EXPANSION JOINT Applications : Chemical Pipe and Acid Pipe Material : Inside Teflon / Outside Steel(SUS304,316L) Inside Teflon(VITON) / Middle(SILICA) / Outside Rubber(SILICONE) Manufacturing Size : 2 ~ 20 Pressure Range : Full Vacuum ~ 10 kg/ cm2

Material : SUS304, SUS304L, SUS316, SUS31 6L, SUS321,

8 PRODUCT HIGH PRESSURE EXPANSION JOINT Applications : Steam Pipe, Liquid Pipe, High Pressure Gas Pipe, etc. Material : SUS304, SUS304L, SUS316, SUS31 6L, SUS321, etc. Manufacturing Size : 2 ~ 20 Pressure Range : 10 ~ 80 kg/ cm2

9 PRODUCT NON-METAL EXPANSION JOINT Applications : Desulfurizer, Crematory, Steel Mill, Power Plant Material : Non-Metal Manufacturing Size : 2 ~ 70 Pressure Range : 1~ 2 kg/ cm2

10 PRODUCT EXHAUST GAS LINES Applications : Exhaust Pipe, Drainage Duct Line, etc. Material : SUS304, SUS316L Manufacturing Size : 2 ~ 78 Pressure Range : 1 ~ 5 kg/ cm2

11 PRODUCT RUBBER EXPANSION JOINT METAL FLEXIBLE HOSE Applications : Liquid Pipe, Gas Pipe, etc. Material : VITON, EPDM, CR Manufacturing Size : 2 ~ 70 Pressure Range : 1 ~ 250 kg/ cm2

12 QC WORK FLOW PRESENT All products quality in DONGSIN EF are inspected and checked through 3 steps which are manufacturing Processing and next step. When customers request for Dimension Mill Sheet, Treatment cert(sub-vendor cert) and submit External Inspection Agency Sheet(Sub-vendor cert) to customers. 1 Step(Imports and Test) - Inspection when we import commodities. (Use standard regulation) - Approve suitability by filling in DONGSIN EF Mill sheet 3 Step(Final Inspection and Test) Result for final Inspection and filling Inspection Report Out. 2 Step(Inspection and Test for Processing) Processing Inspection by using standard regulation Dimension Inspection Painting Inspection Welding Inspection Pressure Test

13 EQUIPMENT 설비명 규격및사양 수량 ROLL Machine 1,220L 1 ROLL Machine 1,220L 1 ROLL Machine 150A~5000A 1 Electric Welder AC Arc 5 Compressor 50 Bar 2 HOIST Crain 4 Ton 1 HOIST Crain 1 Ton 1 CO² Weding Machine 500A 4 CO2 Auto-Welding Machine 650A 1

14 EQUIPMENT 설비명 규격및사양 수량 Steam Boiler 5kg 1 BOILER L 1 PRESS 300 Ton 1 PRESS 500 Ton 1 RADA 1000A 1 MOLD 2 ~ 18 Each 1SET

15 BUSINESS RELATIONSHIP

16 CERTIFICATE

17 CERTIFICATE

18 CERTIFICATE

YONGKWANG FLEXIBLE IND. CO., LTD.

YONGKWANG FLEXIBLE IND. CO., LTD. Content 1. Company Introduction 2. Company History 3. General Information 4. Organization 5. HSE Performance Statistics 6. Quality Assurance 7. Certificates 8. Patents