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Automatic high-efficient recovery unit that smashes of plastic waste of environmental protection
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A kind of rotating handle device of rail transit gas holder
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A kind of multi-functional monitor alarm for fire accident
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A kind of grape planting process
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A kind of formula and preparation method for treating skin disease ointment
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Formula and preparation method of itch relieving solution for treating dermatopathy
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A kind of making formula of skin cream of itching and preparation method thereof
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Bent steelyard
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Weighing apparatus without arm and sliding weight
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