HSZ-O Roller Shutter Chain Blocks

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Features:
1.The world first development and humani-zed design.
2.Its function is strong, which can move on the paralel ambulation,adjust the top and bottomn distance and be fixxed by the side of the wall,it’s widely used in famil-y,small scaled factory,garage,etc.
3.Constantly perform and develop a new item to satisfy each situation is our long-time of persistance. The strong technique and the soldier work guarantee its high quality.
4.Our saling lies in that we are more efficie-nt and profesional

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