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2010
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Invention
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Biodegradable cigarette filter stick and cigarette. A biodegradable cigarette filter stick is pro... |
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Invention
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Biodegradable fibers used in cigarette and cigarette filter rod. Biodegradable fibers used in cig... |
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Invention
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Biodegradable cigarette fiber. A biodegradable cigarette fiber, specifically a biodegradable fibe... |
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Invention
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Biodegradable fiber for cigarette and preparation method thereof. A biodegradable fiber for cigar... |
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Invention
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Biodegradable cigarette filter rod and cigarette. A biodegradable cigarette filter rod, which is ... |
