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Special slit self-sealing powder spreading device for three-dimensional printer
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Double-color three-dimensional printer material pushing device switched by planetary gears
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Remote interference silencing method for mobile phone receiver and mobile phone with screen local sound
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Special contrary formula extruder that ends of three-dimensional inkjet printer
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Dedicated colour mixture extruder of three-dimensional inkjet printer
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Dimension-increasing type color forming method special for three-dimensional printer
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Printing transfer type photocuring three-dimensional color printing technology and device
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Needle plug impact type injection dispensing valve
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Cache lifting method for instant power of electric automobile
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Intercooling method for instantaneous conduction, throttling and intercooling of combustion chamber and heat-insulating internal combustion engine
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Anti-skid differential with filling and shortage worm disc and tooling process
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Planetary gear type three-dimensional printer pusher
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Bicycle and electric moped with middle shaft fluted disc speed changer
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