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| Lihoy > Minerals, Metals & Materials > Non-ferrous Metal Alloy > Sell Fabric Roll-up Blind With Torque Spring Control |
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| 2. Adopt the spring and precise machinery system which are manufactured by our own professional design and technology. 3. The function system is like this: During the operating, the rise and fall of fabric brings the roll pipe turn clockwise and anti-clockwise, while the inner axis keep in place. The spring gets the screwy strength between the roll pipe and inner axis which bring the operating effect of chain-controlled roll up blind; 4. Gorgeous decorative patterns; 5. Can be rolled up freely. Liyang Xinyuan Curtain Products Co., Ltd.
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