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It is a kind of be used for it is indoor can intelligent control lifting sound equipment fixed framing device
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A kind of large-scale audio amplifier fixed framing device for being used for outdoor liftable and fixing
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A kind of cement mixer for being easy to charging
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The sand-blocking device of arid area
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The planting groove of arid area
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Telescopic electric power connection line
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Curved surface engineering deceleration body
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Single-stage drives hydraulic pressure to put forward brill formula dynamical system
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Operation device for manually adjusting water pressure
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Operation device for electrically regulating water pressure of water supply hose
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Water hose water pressure regulation operation device with LED indication lamp
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Manual operation device for adjusting water pressure of water supply hose
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Leadless PTC thermistor material with high Curie point
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