PRODUCT features
1.BT80 aluminium sliding window fusion BT50 series all advantages, tie-in harmony wind 34 mm double cavity heat insulation, insulation, greatly increasing the ability of heat preservation, sound insulation window has more excellent properties of heat preservation and heat insulation;
2.BT80 series of hand used nylon transmission, than the average transmission of sound insulation effect is better.
3.BT80 series of hand perfect to cater to the contemporary residential solutions, spacious Windows, security component, it has high product value.
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