原子筆.中性筆.鋼珠筆 - 聯全文具行 SKB 中性鋼珠筆G-151 產品規格: 0.5mm / 全針管 筆芯顏色: 藍、紅、黑 主要成份: 樹脂、塑膠、色粉、銅、矽油 包裝方式: 12 ...
Rollerball pen - Wikipedia, the free encyclopedia In comparison to ballpoint pens,. Less pressure needs to be applied to the pen to have it write cleanly. This permits holding the pen with less stress on the hand, ...
