Gem Bids For 148 Troughing Idler Complete With Frame As Per Drg No. D1 Em- 1516 Troughing Impact Idler Complete With Frame As Per Drg No. D1 Em-1517 Self Aligning Idlers Complete With Frame And Rollers As Per Drg No. D1 Em-1518 Rollers For Impact Idlers As Per Drg No. D1 Em-1517 Returning Idler With Bracket As Per Drg No. D1 Em-1520 Rollers For Troughing Idler As Per Drg No. D1 Em-1516