儿童数学算盘教具13档五珠计算架

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• intros：{"brand_intro":"得力集团是中国最大的办公与学习用品制造商之一，成立于1988年，产品覆盖文具、教具、办公设备等领域。品牌以\"品质可靠、价格亲民\"著称，拥有完善的品控体系与供应链。其儿童教具系列延续了得力一贯的实用主义风格，算盘产品因高性价比与耐用性成为市场爆款。","product_intro":"得力13档五珠算盘专为小学生设计，采用ABS环保塑料材质，轻便耐摔，适合课堂与家庭使用。每档五颗彩色珠子，支持百以内加减法教学。算盘边框带有数字刻度，方便对照学习。底部配有防滑垫，使用稳定。产品通过国家3C认证，无尖锐边角，适合6-12岁儿童进行数学运算训练。","key_specs":["适用年龄:6-12岁","材质:ABS环保塑料","档数:13档","珠子数量:65颗","附加功能:数字刻度边框","认证:3C认证"]}
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