Drainage grates in this site have a wide range of accessories their major products are manufactured to suit a multitude of applications. The grates are made out of gray cast iron and ductile iron as well there is other such as galvanized, mild steel which include longitude and shape for your desire. All castings are available in a different class. This depends on your taste the range sizes vary
. that are manufactured in Australian and new Zealand there is over 500 patterns here trench grate frames. New patterns can be made for more info go to http://www.carsonind.com/cominddchan.asp