GRP-Elbow 90°, large, radius 600 mm, for cable tray KK, with unperforated side rails, with integrated perforated connector plates, glass fiber reinforced polyester, pressed, RAL 7032, pebble grey Refer to the product sheets for more information on product details and. GRP-Elbow 90°, large, radius 600 mm, for cable tray KK, with unperforated side rails, with integrated perforated connector plates, glass fiber reinforced polyester, pressed, RAL 7032, pebble grey Refer to the product sheets for more information on product details and. Customised fitting dimensions are available upon request. Standard cable tray fitting fabricated using stainless steel (SS) angle plates and bolt sets. Available for purchase in a full composite system. Flat Elbows (FE) are designed to create fixed angular coplanar connections between horizontal cable runs (cable ladder installed in horizontal plane) and between vertical cable runs (cable ladder installed in vertical plane). Unique I-Beam profile maximises the loading performance of the product. Speedway Flat Elbows are available in widths from 150mm to 900mm and standard radii of 300mm, 450mm, 600mm, 750mm and 900mm. Atkore customer service experts. The aluminum I-beam design of Itray is perfect for industrial installations with large diameter cables in long span situations, minimizing total tray width and creating a smooth transition between straight sections and fittings.