동아스틸주식회사 - dosco.com

1 THE FUTURE OF DOSCO DEPENDS ON OUR CLIENT S SUCCESS Head Office 152-2 405 Room 405 Woochang B/D, 152-2, Gamjeon-dong, Sasang-gu, BusanTEL 051-320-3000 / FAX 051-326-8883~4 Gwangyang Factory 1653-12 1653-12, Taein-dong, Gwangyang City, Jeonranam-doTEL 061-797-8080 / FAX 061-797-8099 Kyungin Branch Office 2210 207207 Landplaza, 2210, Jeongwang-dong, Siheung City, Gyeonggi-do, KoreaTEL 031-434-9981 / FAX 031-434-9987 Daegu Branch Office 16261767, Sangyeok-dong, Buk-gu, DaeguTEL 053-381-1781 / FAX 053-381-1784 DOSCO America, Vermont Ave, Suite#1106, Torrance, CA90502, USATEL +1-310-527-0086 / FAX +1-310-527-2270 DOSCO, the company that grows on you.

2 ( ) 1987 2003 7 20 CGL( ) , 10 , . , ( ) . , , ( ) . , . , , ( ) .Since the establishment of DOSCO in 1987, We have experienced continuous growth while providing the best quality products to our our technical expertise, we have produced 200,000 tons a year of Continuous Galvanized, 100,000 tons a year of 10 tubing and 50,000 tons of super color square tubing with inner-rust preventive finish, first ever in Korea, all with on time deliveries to serve our valuable s management philosophy is based on Human Respect, Future innovations, and Customer trust in providing top quality to our clients with endless research and.

3 The company with ever changing vision will always offer you support as a complete steel / Vision5 / Company History6 / Production Facilities - / Continuous Galvanizing Line - / Tubing Line - / Super Color Tubing Line - / Forming Line - / Slitting Line12 / Main Products14 / Standard Specifications23 / Technical Development and CertificationOur company strives for continuous development of new products and quality improvement. Pipe Maker .DOSCO (Dong-A Steel Company) , . DOSCO is derived from the first syllable of Dong-A Steel Company, and the two lines represent balance and unity. Human Respect Future Innovation Customer s Trust [ Company History ]Sep.

4 1987. ( ) Company established as DONG-A STEEL PIPE 1991. Company incorporated as DONG-A STEEL PIPE CO., LTDJan. 1994. 2 The second factory 1994. 2 4 Pipe production expanded to include 4 Tubing 1995. ( ) CEO changed From Kim Jong-joo to Kim 1995. Registered with the Korea Trade 1996. 1 2 The material production line moved from the first factory to the second 1997. 2 C The second factory equipped with the color C-section production 2000. < ( ) ( )> Company name changed from DONG-A STEEL PIPE CO., LTD. to DONG-A STEEL CO., 2002. HSB / ISO 9002: 1994 Busan Factory Certified by HSB and ISO 9002: 1994 Quality Control Systems Certification by 2003.

5 , (10 , 5 , 2 ), SHEAR, SLITTER, Gwangyang factory completed with Continuous Galvanizing Line, 10 , 5 , 2 tubing line, shearing, slitting, Line, 2004. ( ) Obtained patent for the inner-coated tubes and the manufacturing 2004. KSA / ISO 9001: 2000 Certified for ISO 9001: 2000 Quality Control Systems Certification by 2004. KS ( ) Obtained Korea Industrial Standard Certification (Carbon Steel Tubes for General Structural Purposes)Jan. 2005. DOSCO America, Inc. established. Sep. 2005. JIS ( , ) Obtained Japanese Industrial Standard Certification (Carbon Steel Square and Carbon Steel Tubes for General Structual Purposes)Jan.

6 2006. Organized technical research center at Gwangyang factoryMar. 2006. KS ( , , ) Obtained Korea Industrial Standard Certification (Carbon Steel Tubes for General Structual Purposes, Carbon Steel Pipes for General Structual Purposes Carbon Steel Pipes for Pressure Service)Mar. 2006. Dosco China office opened in Beijing Jun. 2009. KS Obtained korea Industrial Standard Certification (Carbon Steel Pipes for ordinary piping-white pipe)Apr. 2010. (2", 1 ") Gwangyang Factory equipped with the 2 , 1 tubing line Head Office Kyungin Branch Office DOSCO America, Inc. Daegu Branch Office Gwangyang Factory.

7 Our goal is to work with you to develop the most advanced steel products while achieving the highest quality through our advanced automated O N G - A S T E E L C O . , L T D .6D O N G - A S T E E L C O . , L T D . [ Production Facilities ] | Continuous Galvanizing Line |HGI / SkelpThickness : ~ ( ~ )Width : ( ) ( ) : 508mm(20 ) ( ) : 900 ~ 2,000mm(35 ~ 80 )Hot Galvanized Steel Coils21 . (X-ray) (~600g/ ) , , , , , .We have introduced a line in order to con-tribute to national industrial development in the 21st century.

8 The line enhances our steel product processing technology. This is line controlled and operated by a central computer and designed to maintain the steel plate coating amount at a certain level(~600g/ ). It does this using various special high-tech mechanisms and testing devices, including X-ray. This line is used to process carbon steel pipes and angled steel pipes for ordinary structure as well as for the steel pipes for green houses, fences, scaf-folds, vehicles and vessels. | Production Process | Gwangyang FactoryContinuous Galvanizing LineTubing LineSuper Color Tubing LineForming LineSlitting Line | Product Characteristics .. Zero, Minimized, Regular spangle.

9 120 ~ 600g/ . Superior surface roughness and uniformity of steel pipes Outstanding corrosion-resistance due to galvanization Beautiful appearance due to Zero ,Minimized, Regular spangle Uniformed coating due to the optimized zinc melting pot control Availability of zinc coating : 120 ~ 600g/ on both sides Facility Thickness Width Zinc Coating ~ ~ 600mm120 ~ 600g/ (Both surface)200,000 O N G - A S T E E L C O . , L T D .8D O N G - A S T E E L C O . , L T D . | Tubing Line | | Super Color Tubing Line | , , , , , , , , , , , , In-line process of square and rectangular tubes for fences, engineering, construction, steel towers, scaffolds, cars, supports and handrails, water-supply and drainage, industrial water, gas carriage, vessels.

10 , , , In-line coating process for internal and external coating of super color tubes, used in engineer-ing, construction, machinery and ship building applications. | Production Process | Production ProcessContinuous Galvanizing LineContinuous Galvanizing LineTubing LineTubing LineSuper Color Tubing LineSuper Color Tubing LineForming LineForming LineSlitting LineSlitting Line Facility Size Thickness Length CapacityP - 1 ~ 20 ~ ~ ~ ,000ton/yearP - 3 ~ 20 ~ ~ ~ ,000ton/yearP - 4 50 ~ ~ ~ ,000ton/yearP - 5 ~ 100 ~ ~ ~ ,000ton/yearP - 6 ~ ~ ~ ~ ,000ton/year | Gwangyang Factory | Gwangyang Factory Facility Size Thickness Length CapacitySCP 40 ~ ~ ~ ,000 O N G - A S T E E L C O.