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Petroleum transportation pipeline
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Self-fastened PCB board transferring cart
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Modified fiber ball filter for oil field
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Anti-static coating
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Solar energy sentry box system
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Independent sentry box umbrella
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Self-cleaning type solar sentry box umbrella
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Self-cleaning solar panel
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Solar panel with light detection
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An energy-saving camera device
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Solar sentry box
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Rain-proof type solar sentry box
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An intelligent tracking type monitoring camera device
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An intelligent camera system
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A scanning monitoring device
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Temperature regulating type solar sentry box
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Tracking solar panel
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Efficient solar panel system
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An intelligent camera device
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A non-dead angle camera device
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