Tender For corrigendum : supply of ovesco otsc system set 12 by 6 220 , otsc twin grasper for upper gi tract opening width max 90 degree working length 165cm channel diameter 2 point 8mm , intragastric balloon for obesity , ercp cannula 5fr to 7fr catheter with a straight tapered tip up to 0 point 035 inch guidewire ercp cannula , controlled redial expension balloon wire guided size 12mm to 15mm , controlled redial expension balloon wire guided size 8mm to 10mm , controlled redial expension balloon wire guided size 10mm to 12mm , multibite biopsy forceps 160cm , multibite biopsy forceps 240cm