求翻译：四.包装及贮运：本产品属非危险品，用200L塑料桶包装(200kg/桶)，也可根据顾客需要定量包装。贮存于阴凉干燥处，贮期一年。应避免与碱性物质接触，防潮，防酸。贮期一年.是什么意思？

IV. packing and storage: the product is a non-dangerous goods, 200L plastic barrel (200kg/barrels) or quantitative packaging according to customer needs. Store in a cool dry place, storage period of one year. Should avoid contact with alkaline substances, moisture-proof, acid-proof. Storage period of one year.