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INK-FOLLOWING PLUNGER FOR BALLPOINT PEN AND METHOD FOR MAKING SAME
INK-FOLLOWING PLUNGER FOR BALLPOINT PEN AND METHOD FOR MAKING SAME
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机译:圆珠笔的追墨柱塞及其制造方法
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摘要
the invention relates to a piston follower for ball point penincluding a component in the form of a stable gel hardnessmeasured by cone penetration between 100.10-1 mm and 400.10-1mm, and its manufacturing process in the field.
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