得力木质算盘7珠13档儿童教学算盘

评测依据

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• intros：{"brand_intro":"得力集团始创于1988年，是中国最大的办公与学习用品综合供应商之一。凭借强大的研发、制造和品控体系，得力产品覆盖文具、办公设备、教学用具等多个领域，以高性价比和可靠品质深受消费者信赖，连续多年蝉联中国文具行业十强。","product_intro":"该产品采用优质榉木制作，边框光滑无毛刺，7珠13档标准设计，适合儿童珠心算启蒙教学。算珠采用环保漆面，色彩鲜艳且不易褪色，档杆为金属材质，滑动顺畅。整体尺寸适中，便于儿童抓握操作，是小学数学课堂和家庭辅导的经典教具。","key_specs":{"对象":"儿童/小学生","材质":"榉木+金属杆","档数":"13档","珠数":"7珠/档","尺寸":"约28×8×2cm","适用年龄":"3岁以上"}}
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