ball point pen refill 圆珠笔芯
Ball point pen and refill 圆珠笔和笔芯
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Making researching developing designing and sale all the student and office stationeries. Makes all size of ball point pen and gel pen's refill.
制造、研究、开发、设计、销售文化办公用品及各种规格定制圆珠、中性芯。
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