joinus zhongcheng 82ms function calculator for student exams fractional trigonometric function coordinate transformation computer_众成JOINUS计算器择悦电子

$joinus zhongcheng 82ms function calculator for student exams fractional trigonometric function coordinate transformation computer$

joinus zhongcheng 82ms function calculator for student exams fractional trigonometric function coordinate transformation computer

JOINUS众成82MS函数计算器学生考试用分数三角函数坐标变换计算机

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学生考试用，可以带进考场！

尺寸15.5x18cm

颜色平均配色，需要指定颜色，联系客服！

82ms-1-1

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批发退换货说明：

1.零售买家（第一档价格）请收货前查看好再签收，有问题立即联系客服并3天内发回退换！发错货或者有质量问题的由卖家承担来回运费，其它原因由买家承担来回运费！（质量问题只限计算器不能正常使用，所以买家先在实体店看好再下单）

2.第二档和第三档价格均为批发大货价，请批发商们把坏机累积到一箱（或满500元）联系客服后，再发货运退回来退换！不满足条件者需自己到仓库退换结算或者自付运费发回退换！

3.坏机不多的商家（第二、三档价格），每年可免费退换一次坏机（建议商家们把坏机累积到年底一起退回）。

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