In this video, we review the Longer B140W Laser Engraver, discussing its features and functionalities, as well as its current sale price. #LaserEngraver #LongerB140W #ProductReview Epstein mentioned ...

I've tested the best laser engravers - putting each one through their paces in my workshop to select the top-rated units for beginners, hobbyists, businesses, and even my top choice for the classroom.

Aiming at the application of continuous wave supersonic DF-CO2 transfer chemical laser based on HYLTE nozzle, chemical kinetic model and inlet parameter optimiz ...