伊朗紅新月會下屬的Helal紡織公司生產(chǎn)各類救災用帳篷，現(xiàn)該公司求購帳篷用面料，要求如下： 
        Material: 100%polyester fabric coated with PVC (waterproof)
        Color: In sevem colors
        Weight: 60±4 grams per square meters
        Number of warp: 42±2 in each centimeter 
        Number of weft: 32±2 in each centimeter 
        Width of cashmere: 150±1 centimeters
        Coated width: 148 centimeters 
        Fabric appearance: clean appearance and without any spot
        Shrinkage percentage: maximum 3%
        Weaving type: taffeta (190T) 
        Resistance against water influence: at least 80 Pa
        Yarn count of wrap and weft: filament 50 denier
        PVC percentage: (20±3)% 
        Strength resistance: in the direction of wrap at least 45 dan; in the direction of weft at least 30 dan
        Color rubbing fastness in wet condition: at least grade 3
        Color light fastness: at least grade 6

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