明确索赔期限，包括索赔有效期和品质保证期。
Validity period clear claims, including claims and quality guarantee period.
索赔有效期是指买方对卖方未按合同约定要求提供商品时，买方向卖方提出赔偿要求的时间期限。
Claim validity refers to the buyer to the seller is not required by the contract goods, the buyer the seller lodge a claim for compensation of the time limit.
针对数量较多，技术较复杂，检测时间较长的商品，索赔有效期可适当延长，可订为120天、160天、180天。
In view of the quantity is more, technology is complex, detection of goods for a longer time, the validity of the claim can be appropriately extended, available for 120 days, 160 days, 180 days.
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