Here’s what you’ll learn on today’s Machinery Minutes podcast, in which PMM editor Ron Shinn rounds up three top stories from the past week:  - Are you familiar with PWDS, SFDR or WDLS? If you are in the blow molding business, you know they are acronyms for equipment to optimize thin bottle walls. But you might be surprised where this equipment came from.  - Tobias Baur is Arburg’s managing director of sales and after-sales, plus he is president of Euromap. Hear what he has to say about leadership, innovation and the future of plastics.  - Recyclers may be the biggest losers in the collapse of talks on an international plastics treaty.