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Smart Expandable Dual Window

250mm / JBF-250R

You can produce a profound atmosphere with the harmony of possibility and design.
It is easy to work and has excellent workability when it is used as a double window such as a living room division door.

※ central crime prevention function installation is possible.

※ Handle is optional.

Auto Lock
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Simple Handle(Large) JS-HS01 Simple Handle(Small) JS-HS02
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Energy effaceiency confermation - BF-250

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Smart Expandable Dual Window 250mm
Usage Double-glazed windows, living windows
Recommended size Width 3200 * Height 2400
Glass application 5-24mm
Main material application JBF-250R / JSF-120B, 115B, 115BN, 115G / MC-120B, 115B, 115BN, 115G / GB-5, 20, 91P, 16P, 24P, 26P / MF-115
window JSF-115BN(24mm pair)
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frame JBF-250R
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• Colors of catalogs are image cuts for easy understanding, and may differ slightly from actual product.

• For optimum performance, please follow the standard specifications. Do not lean against the door or push hard. The glass may break.

• Do not let the hot air or heat of the heating appliance touch the door directly. It may cause deformation or fire.

• Please be careful about the safety of the children because the window and screen screen may fall when you lean or shock.

• Design or molding is subject to change without notice.

• When using outside window, A / S is excluded.


• The warranty period is within one year from the date of purchase only in case of defective manufacturing, and all additional A / S will be charged.

• Please note that you may be charged for actual costs (manufacturing costs, travel expenses, etc.) at the time of receipt after A / S period (about 1 year). However, we will notify you that the actual expenses will be charged even if there is less than 1 year of A / S due to installation defect (installation of door frame anchor, mounting hinge, cylinder ota ball, etc.).

• Consumable parts (interlocking car, mohair, etc.) can be purchased from us.