Article content Oldcastle-based Toolplas Systems Inc. closed its doors this week, putting about 200 employees out of work at its two Windsor plants. The firm, founded by Nick Mamatas in 1999, also has a plant in Mexico and does production in China. We apologize, but this video has failed to load. Try refreshing your browser, or Toolplas Systems closure eliminates close to 200 local jobs Back to video Calls and emails to Toolplas weren’t returned on Friday when some workers were observed removing their personal belongings. “It was a great business, with good employees and good machinery,” Canadian Association of Mold Makers chairman Jonathon Azzopardi said.