The monochrome machine series adopts high-quality cast aluminum body, which is sturdy and durable; The workbench can be adjusted accurately in terms of front, back, left, right, and slope; You can transfer ink twice to obtain thicker printing ink; It can prevent ink from drying up when there is a short pause without glue falling off the front and back blank lines; Automatically balance scraper pressure to ensure clean oil scraping, with adjustable scraper pressure.