General signing pen, oil pen, ball pen.
普通签字笔，油性笔，圆珠笔。
Just calculation errors, originally had five hundred words! Now the economic crisis, pen oil but to cherish!
刚才计算错误，原来早就五百字！现在经济危机，笔油可是要珍惜的！
The present invention provides a kind of oil film wet blackboard and its blackboard pen and blackboard roller erasing device.
本发明提供了一种油膜湿式黑板、黑板笔和黑板滚筒擦涂装置。
It is manufactured a follow sealant to neuter pen with synthetic oil and white carbon black, this sealant possesses good follow performance, and can satisfy the sealing requirement of neuter pen.
用合成油和白碳黑制备了一种中性笔随动密封剂，该密封剂有良好的随动性能，能满足中性笔的密封要求。
Stainless steel, screen print, oil and silver pen.
不锈钢板，丝网印刷，油彩，银色签字笔。
With the bottom of the projection of a white transparent container filled with water, then drip in the water the color ink or oil-based paint, pen with a needle guided shaping.
用底部投射有白光的透明的容器装满水，然后在水面点滴油基的彩墨或颜料，用针笔进行引导塑形。
With the bottom of the projection of a white transparent container filled with water, then drip in the water the color ink or oil-based paint, pen with a needle guided shaping.
用底部投射有白光的透明的容器装满水，然后在水面点滴油基的彩墨或颜料，用针笔进行引导塑形。
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