滚筒

(2) the mechanical excircle drum scanning laser imager.

2．板滞式边方滚筒扫描激平照排。

PA seccotine has strong oil resistance, acid resistance and alkali resistance, with which can protect the printing machine from the erosion of fountain solution.

PA粘剂有较的耐油，耐酸碱，可良好的保护印刷滚筒免受润版剂的侵蚀。

Second process: After operated by the front forward gas baffler, the paper reciprocates to the drum of the second layer to perform flanging of the backside.

纸张经推气挡板之作用，至第二层滚筒完成前边折边。

Third process: After operated by the back forward gas baffler, the paper reciprocates to the drum of the third layer to perform flanging of the front side.

纸张经前推气挡板之作用，至第二层滚筒完成边折边。