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A piston type internal combustion engine
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Lens grinding and cutting pressure head
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A kind of lens cleaning equipment
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Semi-automatic cleaning immersion device
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Repairing process of soft material lens
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Lens glue press grinder
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A kind of technique improving eyeglass surface accuracy
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Cloth spinning process for integrated warp printing technology
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Power station boiler hydraulic power soot blower
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Feeding mechanism for filaments with tails
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Movable full fiber electric resistance furnace
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Mechanical hand for transferring lamp filaments
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