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certificate
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Utility model patent certificate--a glass crushing and recycling equipment
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Utility model patent certificate--glass edging machine
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Utility model patent certificate--a locking device for tempered glass frosting treatment
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Utility model patent certificate--a tempered glass cutting device for solar panel assembly
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Utility model patent certificate--a toolless mechanical cutting glass equipment
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Utility model patent certificate--a mobile phone glass film mold
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ISO9001; 2005 quality system certification