Sell Hopper Window

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Product Origin:China
Brand Name:Royal
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Certification:ISO9001
Description:Product Name: Hopper WindowPlace of Origin: ChinaFeatures: 1) High-polymer flex co-extruded in a security groove of the main profile 2) Special structure guarantees water tightness 3) Reinforcement cavity ensures high strength 4) Independent air pressure balance cavity 5) Reliable hardware security design