Y70 series printers are often used to print manufacture trademarks or expiration dates , lot number , sign or logo on bottles, papers, cups or boxes of most every type of material, such as plastic or metal, with fast printing speed, attractive and clear letter formation . Printing speed is adjustable. The date or sign is engraved by chemical reaction onto printing plate. Y70 pad printer is an oil cup type pad printer and Ink is kept in an ink-cup, so it has the advantage of keeping ink clean and save ink in reserve and keep ink from drying over knife-scraper. Additionally, the steel scraping circle has extreme long life cycle.