Application Process. What is a Commercial Glazier. . While this video is not from Keystone Glass Company, it does provide insight into what our Glaziers do everyday. https://www.youtube.com/watch. v=tVgT05kuVp4&ab_channel=alisWebsite. What is it like working at Keystone Glass Company. . Take a peek at what our employees have to say about coming on board with us at. https://www.keystoneglassomaha.com/working-at-keystone. . What can you expect from...