If you must use of offset printing, you can use fast Chin-the right amount of ink and padding on the Red dryness due to oil, by guniting powcder method in case the offeris get dirty.

 
  • 若務(wù)必拔取膠印,可擱置遲不一油墨并增不收過(guò)量的赤燥油,再拔取噴粉的辦法以防背后蹭臟。
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