walnut shell filter material
walnut shell filter material
核桃壳滤料
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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Walnut shell material of high quality walnut shell as raw material, crushing, polishing, steam cleaning, drug preservative treatment, two filter processed.
核桃壳滤料采用优质山核桃壳为原料，经过破碎、抛光、蒸洗、药物防腐处理，两次筛选加工而成。
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