China factory supplied top quality folding patio doors for sale depot & home cost on China WDMA 4 foot Fire-proofing level: German standard MZD

Fire-proofing level:  German standard MZD / NBL fire resistant

wood-grained Color Various colors as per customer’s requirement Thickness Above 1

Opening degree

Through controlling pneumatic system

China factory supplied top quality folding patio doors for sale depot & home cost on China WDMA 4 foot Fire-proofing level: German standard MZD2020 NAHB International Builders Show Product Description Doorwin Group is a major Chinese professional manufacturer of full line of windows and doors. In the past decades, we have exported hundreds of millions of US dollars windows and doors to North America, Europe, and Australia. Mainly for either a commercial or residential project, including: Luxury House, high end Mansion, Personal Villa. With factory area of 30,000m2 and production capacity