Accurate Screen and Grating With an unmatched, expansive product line, plus expert custom manufacturing, we are recognized throughout North America as industry leader of full range metal screen and grating products. We are also proudly Canadian, with distribution and manufacturing warehouses in major cities across the country. Through the strongest supply chain in Canada, we bring top-quality products for the industrial and commercial markets to every part of North America, and all at very competitive prices. At the core of it all is our exceptional customer service, guaranteed through our ASG Service Pledge. We invest heavily in our national sales team, through extensive training, to develop a thorough knowledge of every product we sell.