Head Office

DOOWON HIGH STEEL CO.,LTD.

INTRODUCTION OF COMPANY

Head Office : 7-344 Industrial Tools Circulating Center #152-2,

Gamjeon1-dong, Sasang-gu, Busan, 617-803,Korea

Tel: +82-51-311-3613 / Fax: +82-51-311-3614

Ware House : 2939-3 Gangdong-dong, Gangseo-gu,Busan,Korea

E-Mail: doowonco@paran.com

1. Profile

2. Brief History

3. Main Suppliments

4. Main Items

5. Export packing

6. DIMENSION INSPECTION

7. Stocks

Index

Doowon High Steel Co.,Ltd is a distributor of Steel Pipe, Tube, Fittings, Flange & Plates.

We offer a fast and efficient service, supplying customer at home and oversea.

You can count on Doowon High Steel Co.,Ltd to provide unsurpassed service and Reriable Product, always at a competitive

PRESIDIENT : Tae-Su ParkCONTACT PERSON : Mr. Eden KimTELEPHONE No.: +82-51-311-3613 / +82-70-7786-2386FAX No.: +82-51-311-3614E-MAIL : doowonco@paran.comADDRESS : 7-344 Industrial Tools Circulating Center #152-2, Gamjeon1-dong, Sasang-gu, Busan, 617-803,Korea

1. Profile

2. Brief History

Apr.2009. : Establishment of Doowon High Steel Co.,Ltd.Apr.2009. : Registered as a Vendor for HSG Heavy Industry Co., Ltd.Apr.2009. : Registered as a Vendor for KAVIAN & SOC PROJECTMay.2009. : Registered as a Vendor for Daewoo Eng. Co., Ltd.Jun.2009. : Registered as a Vendor for SungGwang Co.,Ltd.Jul.2009. : Registered as a Vendor for Hyosung Heavy Industry Co.,Ltd.Jul.2009. : Registered as a Vendor for ASIA Heavy Industry Co., Ltd.Aug.2009. : Gwangsung Shipbuilding Co., Ltd.Aug.2009. : Registered as a Vendor for 21st Century Shipbuilding Co.,Ltd.Sep.2009. : Registered as a Vendor for Hanjin Heavy Industry Co.,Ltd.Oct.2009. : Registered as a Vendor for STX Shipbuilding Co., Ltd.Oct.2009. : Registered as a Vendor for DSMENov.2009. : Registered as a Vendor for Samsung Heavy Industry Co.,Ltd.Nov.2009. : Registered as a Vendor for JMC Co., Ltd.Dec.2009. : Registered as a Vendor for Sungchang Heavy Industry Co., Ltd.

3. Main Suppliment

May.2009. Daewoo Eng Co., Ltd.(DANGJIN PROJECT) - CARBON STEEL SEAMLESS PIPE A106 Gr.B / A53 Gr.B 120TON - CARBON STEEL ALLOY SEAMLESS PIPE A335 P91 / A335 P11 30TON

TOTAL 150TONJul.2009. Sunggwang Co., Ltd.(DAN RIVER PROJECT)

- CARBON STEEL ALLOY SEAMLESS PIPE SA335 P22 6TON - CARBON STEEL SEAMLESS PIPE A106 Gr.B 23TON

TOTAL 29TONSep.2009. IRAN KAVIAN PROJECT

- CARBON STEEL SEAMLESS PIPE API 5L Gr.B PSL-1 / A106 Gr.B / A53 Gr.B 1,100TON - ALLOY STEEL SEAMLESS PIPE A333 Gr.6 / A335 P11 / A335 P91 60TON - STAINLESS STEEL SEAMLESS PIPE A312 TP304L / A312 TP316L 15TON

TOTAL 1,175TONSep.2009. Gwangsung Shipbuilding Co,.Ltd.(DECK UNIT PIPE)

- CARBON STEEL WELDED PIPE STPG370 32TON - STAINLESS STEEL WELDED PIPE SUS304TP 28TON

TOTAL 60TONSep.2009. Hyosung Heavy Industry Co., Ltd.(EBARA PLATFORM & 2PROJECTS)

- CARBON STEEL WELDED PIPE STPG370 20TON - CARBON STEEL SEAMLESS PIPE STPG370 / SA106 Gr.B 16TON

TOTAL 36TONOct.2009. IRAQ SOC PROJECT

- CARBON STEEL SEAMLESS PIPE API 5L Gr.B PSL-1 TOTAL 900TONOct.2009. OFFER FROM PENAMBAHAN 3 PROJECTS

- CARBON STEEL SAW PIPE API 5L Gr.B PSL-1 TOTAL 350TON

4. Main Items

A. CARBON STEEL PIPE

TYPE : WELDED & SEAMLESS

GRADE : ASTM A106 Gr.A / Gr.B / Gr.C

ASTM A53 Gr.A / Gr.B / Gr.C

JIS G3454 STPG370

JIS G3455 STS370

JIS G3456 STPT370 JIS G3456 STPT370

API 5L Gr.A / Gr.B / X42 / X46 / X52 / X56 / X60 / X65 / X70 / X80

B. CARB0N STEEL ALLOY PIPE

TYPE : SEAMLESS

GRADE : ASTM A335 P1 / P2 / P5 / P9 / P11 / P12 / P22 / P91

ASTM A333 Gr.1 / Gr.3 / Gr.6 / Gr.8

4. Main Items

C. STAINLESS STEEL PIPE

TYPE WELDED & SEAMLESS

GRADE ASTM A312 TP304/L, TP316/L, TP310. TP321, TP347, TP904L

JIS G 3459 SUS304/LTP, SUS316/LTP, SUS310TP, SUS321TP

D. DUPLEX STEEL PIPE

TYPE WELDED & SEAMLESS

GRADE ASTM A789 S31803

ASTM A790 S31803

4. Main Items

E. FLANGE & NOZZLE

Kind of Items

Welding Neck Flange / Nozzle Neck Flange / Slip on Flange

Shell/Clannel Flange / Blind Flange / Weldo Flange/Nipo Flange

Long welding neck Flange / Square Flange

Orifice Flange / Spectacle Flange

Available Materials

CARBON STEEL(A105, 266CL2/CL4)

LOW TEMP CARBON STEEL(A350LF2, LF3)LOW TEMP CARBON STEEL(A350LF2, LF3)

HIGH YIELD CARBON STEEL(A694F52 / F60 / F65 / F70)

ALLOY STEEL(A182F1, F5, F9, F11, F12, F22)

DUPLEX(A182F51 / A182F53) / SUPER DUPLEX(A182F44)

LINED MATERIALS

CLAD MATERIALS / EXPLOSIVE CLAD

Applicable Standard

ANSI B16.5(1/2" ~ 24")

MSS SP-44(ANSI B16.47 SERIES A26"~60")

API 605(ANSI B16.47 SEIRES B26"~60")

JIS(1/2"~60")

API 6B/6BX(1-11/16"~16 3/4")

AWWA C207(1/2"~3/4")

BS 3293(20"~48")

DIN, BS, AS

4. Main Items

F. FITTING Kind of Items

Elbows, Tees, Reducers, Cap, Stub-End,

Bend(3D / 5D / 8D Induction Bend)

Available Materials

ASTM A234 WPB/WPC/WP11/WP22

ASTM A420 WPL6/WPL3

ASTM A860 WPHY42/46/60/65/70

ASTM A403 WPB304/WPB304L/WP316/WP316L/WP304/WP304H

ASTM A860 WPHY42/46/60/65/70

Applicable StandardANSI, MSS, JIS, BS

Production Range2"~24"(Seamless)-SCH10(S),SCH STD, XS, 40(S), 80(S),160,XXH

26"~60"(Welded)-SCH STD,XS,40,80

64"~120"(Welded)

5. EXPORT PACKING

A. WOODEN BOX

B. WOODEN FRAME C. STEEL BENDING

6. DIMENSION INSPECTION

ISSUDE DATE : 0904022

SIZE : 10" SCH/20 * 11.800

( Vernier Calipers )

□ 0~300mm □ 0~600mm

□ 0~1000mm □ 0~2000mm

REPORT NO :

MATERIAL : A106-GR-B

Q'TY : 176 EA

BOLT HOLES :

NOTES NO : 19014-02 (176)

HEAT NO : 7-22088

POSITION ID mm OD mm

DIMENSION 260.35 273.05

TOLERANCE ± 2.7 ± 2.6

NO.1 259.85 272.35 11.08

11.8

± 0.1

L m

6. DIMENSION INSPECTION

REPORT NO : REPORT NO :

ISSUDE DATE : 0904022 ISSUDE DATE : 0904022

SIZE : NO.1 : 150# WNRF S/10S 12" SIZE : NO.2 : 150# WNRF S/10S 16"

MATERIAL : A182-F304/304L MATERIAL : A182-F304/304L

NOTES NO : E81678 NOTES NO : E81678

HEAT NO : 9PSB19 HEAT NO : 9PSB19

Q'TY : 52 EA Q'TY : 13 EA

BOLT HOLES : 12EA DIA: 25.4 BOLT HOLES : 16EA DIA: 28.4

( Vernier Calipers ) ( Vernier Calipers )

□ 0~300mm □ 0~600mm □ 0~300mm □ 0~600mm

■ 0~1000mm □ 0~2000mm ■ 0~1000mm □ 0~2000mm■ 0~1000mm □ 0~2000mm ■ 0~1000mm □ 0~2000mm

GASKET CONTACT SURFACE GASKET CONTACT SURFACE

□ STOCK FINSH □ CONCENTRIC SERRATED □ STOCK FINSH □ CONCENTRIC SERRATED

■ SPIRAL SERRATED ■ 125~250U inRa ■ SPIRAL SERRATED ■125~250U inRa

□ SMOOTH FINSH □ N/A □ SMOOTH FINSH □ N/A

POSITION D mm C mm A mm t mm T mm

DIMENSION 483 432 323.9 31.8 114.3

TOLERANCE ± 1.6 ± 1.5 2 3 ± 1.5

NO.1 484.1 434.4 324.3 33.3 115.1

DIMENSION 597 539.5 406.4 36.6 127

TOLERANCE ± 1.6 ± 1.5 2 3 ± 1.5

NO.2 598.2 540.2 407.9 38.9 128.3

g mm B mm

± 1

469.6 399.1

381 314.7

± 0.5 ± 1

± 0.5

380.8 315.1

469.9 398.8

6. DIMENSION INSPECTION

REPORT NO : REPORT NO :

ISSUDE DATE : 0904022 ISSUDE DATE : 0904022

SIZE : NO.1: 300# WNRF S/STD 4" SIZE : NO.2: 600# BLRF 32" API

MATERIAL : A-350 GR LF2 MATERIAL : A182 GR F22

NOTES NO : 27372 NOTES NO : K64441

HEAT NO : 9PSC37 HEAT NO : 9PSB33

Q'TY : 5 EA Q'TY : 1 EA

BOLT HOLES : 8EA DIA: 22.4 BOLT HOLES : 8EA DIA: 22.4

( Vernier Calipers ) ( Vernier Calipers )

□ 0~300mm □ 0~600mm □ 0~300mm □ 0~600mm

■ 0~1000mm □ 0~2000mm ■ 0~1000mm □ 0~2000mm

GASKET CONTACT SURFACE GASKET CONTACT SURFACE

□ □ □ □□ STOCK FINSH □ CONCENTRIC SERRATED □ STOCK FINSH □ CONCENTRIC SERRATED

■ SPIRAL SERRATED ■ 125~250U inRa ■ SPIRAL SERRATED ■ 125~250U inRa

□ SMOOTH FINSH □ N/A □ SMOOTH FINSH □ N/A

POSITION D mm C mm A mm t mm T mm

DIMENSION 254 200.2 114.3 31.8 85.7

TOLERANCE ± 1.6 ± 1.5 2 3 ± 1.5

NO.1 253.8 201.1 115.4 33.4 86.4

DIMENSION 1085.8 141.15

TOLERANCE ± 3.2 ± 4.8

NO.2 1086.4 141.26

984.2

± 4.0

986.5

157.3 102.8

g mm B mm

157.2 102.3

± 0.5 ± 1

6. DIMENSION INSPECTION

REPORT NO : REPORT NO :

ISSUDE DATE : 0904022 ISSUDE DATE : 0904022

SIZE : 300# SPECTACLE BLFF 4" SIZE : 150# SPECTACLE BLFF 2"

MATERIAL : A516 GR70+S5 MATERIAL : A516 GR70

NOTES NO : 179766 NOTES NO : 179766

HEAT NO : 9PSB17 HEAT NO : 9PSB17

Q'TY : 1 Q'TY : 3

BOLT HOLES : BOLT HOLES :

( Vernier Calipers ) ( Vernier Calipers )

□ 0~300mm □ 0~600mm □ 0~300mm □ 0~600mm

■ 0~1000mm □ 0~2000mm ■ 0~1000mm □ 0~2000mm

GASKET CONTACT SURFACE GASKET CONTACT SURFACE

□ □ □ □□ STOCK FINSH □ CONCENTRIC SERRATED □ STOCK FINSH □ CONCENTRIC SERRATED

■ SPIRAL SERRATED ■ 125~250U inRa ■ SPIRAL SERRATED ■ 125~250U inRa

□ SMOOTH FINSH □ N/A □ SMOOTH FINSH □ N/A

POSITION Bmm Omm Wmm

DIMENSION 114 178 64

TOLERANCE ± 1.5

NO.1 178.5

DIMENSION Bmm Omm Wmm

TOLERANCE 60 102 38

NO.2 ± 1.5

102.9

Amm tmm

200 13

± 1

13.4

Amm tmm

6.5

121 6

± 1

6. DIMENSION INSPECTION

REPORT NO :

ISSUDE DATE : 0904022

SIZE : AWWA C207 150# SOFF 84" Table-2 Class-D Hub

MATERIAL : A105

NOTES NO : 273772

HEAT NO : 9PSC36

Q'TY : 8 EA

BOLT HOLES : 64 EA DIA: 2. 1/8

( Vernier Calipers )

□ 0~300mm □ 0~600mm

□ 0~1000mm □ 0~2000mmGASKET CONTACT SURFACE

□ STOCK FINSH □ CONCENTRIC SERRATED□ STOCK FINSH □ CONCENTRIC SERRATED

□ SPIRAL SERRATED □ 125~250U inRa

□ SMOOTH FINSH □ N/A

POSITION D mm C mm t mm T mm

DIMENSION 99.3/4 95.1/2 1.3/4 3

TOLERANCE ± 1.6 ± 1.5 3 ± 1.5

NO.1 650.8 572.3 58.9 147.5

g mm do mm

470 391.2

87.1/2 84.19

± 0.5 ± 1

7. STOCKS