Ship-Building, Oil and Gas We have a number of business partners in Europe, North & South America, etc. to provide smooth product supply. A person in charge with expertise in related industries will quickly and accurately match the products you are looking for. We handle special metals used in gas storage facilities and gas transport pipes. We deal with special metals used in drilling equipment such as drilling pipes of drilling ships such as drillships. Main handling items Main handling items Sheet, Plate ROD, Bar Tube, Pipe Wire Coil Download Nickel Alloy item list

Aerospace Aerospace & Defense 공급능력 유럽/북남미/아시아 공급업체 보유 다수의 AS 및 ISO Certificate 보유 공급업체와 MOU 협약 체결 기타 공급업체 300여 곳 보유 약 30여년 원자재 수입 업력 Main handling steel grade Sheet, Plate ROD, Bar Tube, Pipe 핵심 대응 능력 신속한 대응 및 철저한 납기 관리 Airbus 및 Boeing 사의 공급제품 대응 가능 다품종 소량 주문 / 소품종 대량 주문 모두 대응 Download Aerospace related item list

Offer sales, Stock sales Electric_&_Electronic Aerospace Automotive Ship-Building, Oil and Gas Stock sale -Stainless Steel Tube&Pipe

NICKEL ALLOYS / DUPLEX & SUPER DUPLEX & STAINLESS STEEL CP TITANIUM & TITANIUM

TEL : +82-2-546-4356 FAX : +82-2-546-4358 E-Mail : dycorp@dooyoun.net Automotive-Shunt Resistors Henry Park Tel: +82 2-546-4356 Fax: +82 2-546-4358 Oil & Gas Chris & Mr. Kwon Tel: +82 2-546-4356 Fax: +82 2-546-4358 AeroSpace & Defense John Kim & David Jang Tel: +82 2-546-4356 Fax: +82 2-546-4358 Industrials Jay Lee Tel: +82 2-546-4356 Fax: +82 2-546-4358 Electric & Electronic Brian Son Tel: +82 2-546-4356 Fax: +82 2-546-4358 Semi-Conductor Mr. Lim & N.G Seon & JS Jung 16, 180Beon-gil, Daedong-Ro, Sasang-Gu, Busan, Korea Tel: +82 51-321-5003,4 Fax: +82 51-321-5034

Neodymium Magnet Sintered neodymium-iron-boron magnet (also known as Neodymium, Neodym, NdFeB, or Neo magnet) is the most widely used type of rare-earth magnet, which is made from an alloy of neodymium, iron, and boron. Developed in 1982 by General Motors and Sumitomo Special Metals, neodymium magnet is the most powerful commercialized permanent magnets available today, with maximum energy product ranging from 30 MGOe to 52 MGOe, very high remanence and coercivity. It has replaced the traditional magnet materials in the many applications in modern products, such as electric motors, generators, hard disk drives, MRI, speakers, and etc. NdFeB Data Sheet Samarium cobalt Magnet Samarium cobalt magnets (also know as SmCo magnet), a type of rare earth magnet, are made of an alloy of samarium and cobalt. Developed from the 1970's, they came as a revolutionary product, initially tripling the energy product of other materials available at the time. They are generally ranked similarly in strength to neodymium magnets, but have higher temperature ratings, higher coercivity and extremely resistant to demagnetization. They can typically be used up to 300 °C. They are brittle, and prone to cracking and chipping. They are available in two “series”, namely Series 1:5 and Series 2:17. SmCo Data Sheet

Automotive_Shunt Resistors SHUNT Resistor 전류 측정용 Shunt Resistor (션트 저항) 두연실업의 션트 저항은 Low Temperature Co-efficient, High Stability of Electrical Resistance, Low Watt Loss 등이 특징입니다. EB Welding SHUNT Resistors는 차량용 "Battery Management System (BMS)” 과 "Intelligent Battery Sensor (IBS)” 및 "Electronic Energy Meter"의 필수 부분을 구성하고 있습니다. 또한 설계 단계부터 대량 공급까지 통합 생산 능력을 보유하고 있습니다. Main handling items SBA_2512 SBA_2550 SBB_5930 SBC_4026 SBD_3812 SMD Shunt Resistor (션트저항) SBE_3820 SBF_3920 SBG_2725 SBH_4521/4527 SBI_1216 Bar Type Shunt Resistor (션트저항) SBL_3515 SBZ_6918 SBK_5515 SBZ_6018 SBZ_5216 SBZ_8420 SBZ_8518-P 제품의 특, 장점 -Electron Beam Welding 기술을 사용하여 생산 -Low temperature co-efficient value (TCR) -Low Thermal EMF with Copper -고객의 요청하는 사양에 맞춰 Customized Shunt 생산 -제품의 장기 안정성 확보 -제품 규격에 따른 최고 전력 등급 -낮은 전력 손실 -AEC-Q-200 -RoHS Application Energy meters AC/DC Convertors Battery Management System (BMS) Intelligent Battery Sensor (IBS) Power Modules Solar Charge Controllers String Monitoring Devices UPS/Inverters Frequency Convertors Low Inductance Applications DC Energy Meters for Telecom Digital Multimeters Electronic Control Units Download Shunt related item list

Nickel Alloy, Titanium, Shunt, Aerospace, Inconel, Hastelloy, Monel, Stainless Steel Tube Stock, Aluminium, PVC,, About Dooyoun Welcome to Dooyoun Corporation, Founded in 1988, Dooyoun specializes in wide range of non-ferrous metals. Our major materials are bars, sheets, coils, wires, etc. in Nickel Alloys, Titanium, Stainless & Duplex, Super Duplex, and Copper Alloys which we import from world's trusted manufacturers and distributors. We have no doubt that we have been contributing to the development of various fields such as electric, electronic, semiconductor, heavy chemical, fine chemical, automobile, aviation, nuclear industries and so on. We are here to meet customers' needs and match the best overseas supplier that our customers need. All of our executives and staff members of Dooyoun will continue to do our best to meet the expectations of both local customers and overseas suppliers based on 30 years of know-how. We ask for your unwavering interest and affectionate support. Thank you.

Nickel Alloy, Titanium, Shunt, Aerospace, Inconel, Hastelloy, Monel, Stainless Steel Tube Stock, Aluminium, PVC,, Welcome to Dooyoun Corporation, Founded in 1988, Dooyoun specializes in wide range of non-ferrous metals. Our major materials are bars, sheets, coils, wires, etc. in Nickel Alloys, Titanium, Stainless & Duplex, Super Duplex, and Copper Alloys which we import from world's trusted manufacturers and distributors. We have no doubt that we have been contributing to the development of various fields such as electric, electronic, semiconductor, heavy chemical, fine chemical, automobile, aviation, nuclear industries and so on. We are here to meet customers' needs and match the best overseas supplier that our customers need. All of our executives and staff members of Dooyoun will continue to do our best to meet the expectations of both local customers and overseas suppliers based on 30 years of know-how. We ask for your unwavering interest and affectionate support. Thank you. AS 9120 B 인증 범위 1. 항공. 우주용 금속의 유통 및 판매 2. AL Alloy, Stainless Alloy, Alloy Steel, Titanium Alloy, Nickel Alloy 유효기간: 2026년 11월 29일

(주)두연코퍼레이션 비철금속 무역 전문 기업 / Stainless steel tube, pipe Stock / Soft magnetic alloy transformer 제조 Aerospace Non ferrous. Special metal Offer & Sourcing Non ferrous. Special metal Offer & Sourcing Non ferrous. Special metal Offer & Sourcing

Permalloy & Cobalt Alloy 강종소개 Permalloy (퍼멀로이) 니켈과 철의 이원합금으로 투자율이 높은 특성이 있어 전기통신 재료로 많이 이용됩니다. Application 실드(Shield), 자기헤드, 쵸크 코일, 변성기, 릴레이, 토크 센서 등에 적용 가능합니다. Cobalt Alloy (코발트 알로이) 코발트와 철의 이원합금으로 열과 산성에 강한 저항성을 가지고 있습니다. Application Drone (드론), High speed motor (고성능모터), Generator (제너레이터), Blower (블로어) 등에 적용 가능합니다. Main handling items Soft Magnetic Alloys PC (Ni 80%) PB (Ni 45~48%) Cobalt Alloy 2V Permendur Hiperco 50 Varcodur 핵심대응능력 Stock Program을 운용하여, 보다 유연하고 신속한 대응가능 (소량 및 납기 등) 오랜 협력관계의 슬리팅 하우스를 통해 고객사가 요청하는 추가 작업 가능