求翻译：乙方承诺:正常使用，产品寿命为3年；无论合同是否结束，乙方应对产品质量进行保证，直至产品质量保证期满为止。第一年，正常使用产品损坏，乙方提供一个损坏产品调换一个新产品的服务；第二年，正常使用产品损坏，乙方提供二个损坏产品调换一个新产品的服务；第三年，正常使用产品损坏，乙方提供三个损坏产品调换一个新产品的服务；三年内，产品调换的总数量不超过订单总数量的3%；调换产品的运输费用由乙方是什么意思？

Party B promises: normal use, the product life of three years; whether the contract is concluded, B should be to ensure product quality, product quality assurance until the expiration date. The first year, normal use of the product is damaged, a damage to the product B exchange a new product of serv

Party B: The normal use commitment, product life span of three years; whether the contract is concluded, Party B shall ensure that product quality, product quality assurance until their expiry. The first year, the normal use of the product damage, Party B provide a damage replacement products a new

Second party pledge: The normal use, the product life is 3 years; Regardless of contract whether finished, the second party should carry on the guarantee to the product quality, until product quality guarantee expiration up to.The first year, uses the product damage normally, the second party provid

B commitments: normal use, the product life of 3 years regardless of whether the contract ends, party b should guarantee the product quality, up until the expiration of product quality assurance. First years, normal using products damaged, b provides a damaged products swap a new products of service