supply of plastic cover- for signaling unitsplastic cover- for signaling units,plastic cover for calling on signal unit cover open from front & bottom side of uv protected black polythene sheet of 150 micron thickness of size 300mm x 300mm x 190mm and back side 50mm corner to corner white diagonal mark of silver color of 100 micron thickness. cover to be provided with suitable nylon rope of 5mm dia and 1.5 meter length. note:- sample may got approved before bulk supply by consignee.) [ warranty period: 12 months after the date of delivery ] ] , plastic cover for 2 aspect signal unit cover opened from front side and bottom side and made of black polythene sheet of 150 micron thicknes s. size:- 1200mm x 460mm x 205mm. on back side 75mm wide corner to corner diagonal cross mark of aluminum color paint to be provided. to tie up cove r with signal unit suitable nylon rope of 5mm dia and 4mtr length to be provided on front side and of 1.5 mtr length at center. note:- sample may got app roved before bulk supply by consignee.) [ warranty period: 12 months after the date of delivery ] ] , plastic cover for route body opened from front side and made of plastic sheet of 150 micron thickness. size 685 x 76 mm round shape. and on back side 50mm wide corner to corner diagonal cross mark of aluminum color paint to be provided. 5 mm dia nylon rope to be provided on front side to ti e up. note:- sample may got approved before bulk supply by consignee.) [ warranty period: 12 months after the date of delivery ] ] , plastic cover for route arm open from front side and bottom side made of black plastic sheet of 150 micron thickness. size:- 660mm x 508mm x 76 mm. on back side 50 mm wide corner to corner diagonal cross paint of aluminum colour to be provided. to tie up cover suitable nylon rope of 5 mm dia to be provided. note:- sample may got approved before bulk supply by consignee.) [ warranty period: 12 months after the date of delivery ] ] , plastic cover for multi lamp route indicat