1. Company Presentation
2006
회사소개서(국문)

2. Contents Ⅰ. Introduction II. Brief history Company outline
Ⅲ. Facilities
IV. Qualtity Management

3. Established in 1987, Nastech produces Cold Rolled Steel Strips in narrow width. Major products are families of low and high carbon steel strips and special steel strips, which are widely used in the industries of other numerous industrial and consumer goods. Nastech’s facilities and production system are arranged to meet diverse requirements of orders with high quality standard.
Complicated specifications including high level technical standard are characteristics of narrow width CR strips, as final applications require strict tolerance of raw materials. Zero defect is what Nastech is striving to achieve, since we can accomplish our own objectives only through the recognition by our customers.

4. II. Brief history May 1987 Project planning started
Oct Company established and registered
Sep The site area designated as a Special Rural Industrial Zone Also, registered as Foreigner Invested Company
Sep Equipment installation completed
Nov Commercial operation commenced
Apr Regional offices opened
Nov Awarded a trophy for US$10million worth’s export
Feb % hydrogen Annealing furnace installed
Nov Certified ISO 9001
Mar Installation of new a slitter & two levellers
Jan ERP Program Establish
Feb Increasement of hydrogen Annealing furnace (1cover/2base)
Dec Certified ISO/TS 16949:2002
Aug new and superior AGC installed

5. Company outline Korea(336-130) * Total site area : 44,500m2
1. Company Name : Nastech Co.,Ltd (ex-name : Dooyang Steel Co., Ltd)
2. Date of established : Oct 12, 1987
3. Head office & factory : 145-3, Baemi-dong, Asan-city, ChungNam,
Korea( ) * Total site area : 44,500m2
* Building space : 11,350m2
4. Paid-in capital : US$ 6.5million
5. Main products : Cold rolled steel coil (below 430mm width)
* Production capacity : 60,000MT / year
6. Nos of employees
Division
Grade
Nos
Director
Technical
Management
Official Management -
Production Qualtity
Equipment
Business 3 18 8
(29)
Technical’s
Labour 68
(68)
Others 6
(6)
Total
103

6. Main facilities Equipment Manufacturer Capacity (MT/Year)
Coverage of products
Thickness(mm)
Width(mm)
Descaling Line
4-high Cold Rolling Mill
Annealing furnace
(14bases/8covers)
Wide-range Slitter
#1 recoiler & slitter
#3 recoiler & slitter
#4 recoiler & slitter
2 levellers
Packing Line
Cauffiel(USA)
Froehling
(Germany)
KMC(Korea)
EBNER(Austria)
Loopco(USA)
Wonil(Korea)
DeaHwa(Korea)
B & S(Germany)
Ungerer(Germany)
240,000
60,000
48,000
24,000
1.6 ~ 6.7
0.1 ~ 5.7 -
0.25 ~ 6.3
0.1 ~ 2.7
2.0 ~ 5.0
0.1 ~ 5.0
1.2 ~ 5.0
0.1 ~ 1.2
600 ~ 1,340
200 ~ 430
50 ~ 1,520
9 ~ 450
25 ~ 450
13 ~ 450

7. Production range
1. Classification : Low carbon steel, High carbon steel Carbon tool steel, High tensile steel Spring steel, Alloy tool steel
2. Width : 9.0 ~ 430mm max.
3. Thickness : 0.1 ~ 5.7mm (Pickled & oiled : upto 6.7mm thickness)
Cold rolled steel
Pickled & oiled steel

8. Process flow ＆ inspection
Jobs
Checking points
Hot Coil
1. POSCO Delivery
POSCO Mill Sheet
1. Scale Remove
2. P/O Coil(wide)
Descaling
Surface condition
Wide
Slitting
1. Divide coil to the rolling width
2. P/O Coil(Slitted)
Wide
First
Rolling
1. Reduce to the required thickness
Thickness Control

9. Process flow ＆ inspection
Checking points
Process
Jobs
1. Hardness control
2. Internal Stress Remove
3. Grain size of recrystallization
Annealing
Cycle
1. Rolling to final thickness
2. Final surface
Skin Pass
Thickness,Surface
Product Slitting
1. Slitting to final width
2. Slitting to require weight
Thickness,Width, Surface
1. Commercial Packing
2. Export Packing
Packing
Tag(Weight,Lot No)

10. Lab’ equipments

11. Applications
Low carbon steel

12. High carbon & alloy steel

13. Usage
Low carbon steel
High carbon/spring/special steel
P/O coil

16. Industry

17. China India Singapore Japan Indonesia Malaysia Thailand Iran
Local/Export
Export
China India Singapore Japan Indonesia Malaysia Thailand Iran
47,000MT

18. Relationship with Valeo, BorgWarner, Delphi

19. Ⅲ. Facilities

20. Lay out

21. Process

22. Pickling & Oiling Line - Remove scales on Hot coil surface
- oiling on pickled coil
- Maker : Cauffiel(USA)
- Capacity : 240,000MT/Year
- Workable Specification ;
Thickness : 1.6mm~6.7mm
Width : 600mm~1,300mm

23. #2 SLITTER - Slit to final size(P/O products)
- Slit to cold rolling width
(200mm~430mm)
- Maker : Loopco(USA)
- Capacity : 240,000MT/Year
- Workable Specification ;
Thickness : 0.25mm~6.7mm
Width : 50mm~1,520mm

24. CRM(Cold rolling machine)
- Reducing to the desired
thickness.
- 4-high reversible combination mill
- Maker : Frohling(Germany)
- Capacity : 60,000MT/Year
- Workable Specification ;
Thickness : 0.1mm~5.7mm
Width : 200mm~430mm

25. ANN(Annealing) - Reducing hardness, facilitating cold working,
producing a desired
microstructure or
obtaining desired mechanical, physical or other properties.
- 14bases / 8covers
- Maker : KMC(Korea)
Ebner(Austria)
- Capacity : 60,000MT/Year
- Workable Specification ;
Out Diameter : Max1,600mm

26. #1,4 SLITTER, Leveller Levelling - Final size(customer’s order)
slitting, levelling
- Maker : DeaHwa(Korea)
Ungerer, B&S
- Capacity : 100,000MT/Year
- Workable Specification ;
Thickness : 0.1mm-5.0mm
Width : 9mm-450mm
Levelling
Ungerer(thin gage) B&S(thick gage)

27. PACKING
- Export packing is Wrapped with water proof kraft paper & vinyl wrap.
- Especially thiner coils are packed
with steel plate.
- Pallet : wood or steel
- Coil O/D 1,500mm Max.
- Domestic Packing

28. “The Realization of Customer Satisfaction through Quality Management “
회사소개서(국문)

29. QUALITY MANAGEMENT Equipment Investment System reinforcement
NASTECH is maintaining a superior quality standard in cold rolled steel industries
under quality management’s slogan from 2001 with continuous equipment investment
and system reinforcement.
Equipment Investment
System reinforcement
Hydrogen Annealing furnace
installation(Ebner)
February, 2001
February, 2005
ERP PROGRAM : January, 2006
Real time inquiry of product process
Lot management : tracing management
from raw material to final product
Levellers installation : March, 2004
For thinner gauge (UNGERER)
For thicker gauge (BURGHARDT + SCHMIDT)
ISO/TS16949:2002 certification
January, 2006
Systematic quality management
New & superior AGC installation
AUTOMATIC GAUGE CONTOLLER
September, 2006

30. Hydrogen Annealing furnace
Equipment Investment
Hydrogen Annealing furnace
installation(Ebner)
It can be enhanced the rate of heat transfer and restoration.
Control mechanical properties and excellent surface quality.

31. Levellers Installation
Equipment Investment
Levellers Installation
Ungerer
BURGHARDT + SCHMIDT
After levelling
Both for thinner gauge(Ungerer) & for thicker gauge(B + S) installed
improve better flatness

32. AGC replacement (VOLLMER )
Equipment Investment
new and superior AGC
AGC replacement (VOLLMER )
Replacement to new & superior Automatic Gauge Controller of VOLLMER.
Precise thickness control at ingoing and outgoing of Cold rolling machine by Γ-Ray. Actual thickness control : +/-0.005~+/-0.01mm

33. System reinforcement ERP Program
Real time inquiry of whole product process

34. System reinforcement
Lot management : tracing management from raw material to final product
ERP Program

35. ISO/TS16949:2002 certification
System Reinforcement
ISO/TS16949:2002 certification
pursuit of system efficiency with accessing
as process.
pursuit of customer satisfaction maximum
by continuous improvement for zero defect.
settlement of quality management system.

36. Gauge control after new AGC installation
Material : S35CM-S 1.2 x 228.6
Coil length : 877.8m Thickness tolerance : +/-0.005mm

37. Gauge control after new AGC installation
Material : S35CM-S 1.6 x
Coil length : 686.8m Thickness tolerance : +/-0.005mm

38. Gauge control after new AGC installation
Material : S35CM-S 1.6 x
Coil width : mm Cross profile : mm ~ -0.01mm