Since its establishment in 1987, directors and employees of Wonjin Aluminum Co., Ltd. have been striving to realize value for customers with continuous technology development. In addition, the company implements customer satisfaction through the Non-Stop System covering all processes, from design, to production, construction and A/S, with its competitive HR system.
The eff orts of the company to be the No.1 player in the industry has led it to being accredited for its quality and to achieve product competitiveness through K/S certifi cation, certifi ed test records, performance certifi cate, and excellent product certifi cate and self-quality assurance company. It keeps a promise with customers to be a strong company and does its best to provide affl uence to customers’ lives for its products.
Various Windows and Doors Produced by Wonjin Aluminum
Casement windows are mainly used as ventilation windows or escape windows, and are opened from the inside toward the outside. The maximum opening angle is 90 degrees.
Normally, when the outside air fl ows in through the gap between the window frame and the window, insulation will decrease. Designed to overcome this, the casement window adopts a method that provides excellent insulation eff ects by covering the section of the frame that is exposed to the outside air with insulation materials combined with aluminum.
As for curtain wall windows, a polyamide insulation material is applied between the main member and the fi xing plate for the primary insulation, and polyurethane is applied to the middle section of the fi xing plate for the secondary insulation. In addition, polyamide is applied to the member that is connected to the external cap for the third insulation. Thus, the curtain wall window is a highly insulated window.
System doors can be mainly used for doors that come in contact with outside air directly. It is a highstrength system door that can be used as a main entrance door of a house and an entrance door of an offi ce. As special hardware is used, the system door provides excellent air-tightness and insulation and, accordingly, is suitable for an entrance door of a building as well as for laboratories, test rooms and recording rooms.

Lift sliding window will be lifted 8mm above the rail and slide with the help of a special hardware operation method, thus allowing a large-sized window to be opened easily and smoothly. It provides excellent insulation and air-tightness because of the use of a gasket made of a special material that has excellent durability and restoring force.
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The company’s products are applicable for not only Korean-made vehicles from Hyundai, Kia, SsangYong and GM Korea, but also foreign-made cars from Toyota, Honda and BMW. The maker can supply automotive parts under the basis of both OEM and genuine parts. Its products can also carry the fi rm’s own brand “DJ parts.”
The manufacturer’s fuel fi lters satisfy the EU’s standards and are applicable for most of Korean-made cars, including CRDi (Common Rail Direct Injection) dieselengine cars. They have the same quality as those being supplied to Mercedes Benz, BMW and Audi.
The maker’s automotive bulbs and plugs are made to the European Standards and therefore can be used for most of the Korean- and European-made cars. They are the same models as those being used for cars from Mercedes Benz, BMW and Audi.
Recently, the fi rm has acquired the Korean agency for Bosch.
Samwoo B&B Co., Ltd. is the fi rst company that succeeded in domestically producing webbing sling in Korea. Webbing sling was developed with Dr. Yoon Han-sik of KIST and the Industry Department of Kolon Co., Ltd. to replace imported ones.




New technologies have been applied to Dada’s product range. First, ecofriendly energy- saving faucets are designed to save hot water as well as water itself. When using a single lever mix lever, you turn the lever to the left for hot water, middle for warm water and right for cold water.




Also, there are various applications and locations for commercial buildings, apartments, etc. There are braided and unbraided types for sprinkler hoses.
pipelines, boiler gas lines, fi xed type ovens, stoves, and built-in gas devices. It is safe against vibrations or earthquakes. Lastly, sanitary ware plumbing hose is applied to shower hoses, toilets and various plumbing systems. It is aesthetic and safe against water leakage.



