roller printing machine वाक्य
"roller printing machine" हिंदी में roller printing machine in a sentenceउदाहरण वाक्य
- What Parkinson's contribution to the development of the modern roller printing machine really was is not known with certainty, but it was possibly the invention of the delicate adjustment known as the box wheel, whereby the rollers can be turned, whilst the machine is in motion, either in or against the direction of their rotation.