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WINDOWS & DOORS
Window and door is also the most important part of the house which was built for the ventilation, allow incoming light and the traffic of the family members.
Window and door did not contain many part, they consist of only frame, sash, glass in some cases and the hardware. Without one of these components, window and door may probably unable to function properly as it should be.
The development of window and door frame has been developed even better technology like the uPVC frame which can be reinforced with the steel to make the structure even stronger.