supply of piston ring compressor guide (std) as per drg.no. mt05gm0096 alt c or latest if any. note: the firms with past performance of the tendered/same items subject to submission of proof of documents such as pos/r note are only eligible.piston ring compressor guide (std) as per drg.no. mt05gm0096 alt c or latest if any. note: the firms with past performance of the tendered/same items subject to submission of proof of documents such as pos/r note are only eligible.,piston ring compressor guide (std) as per drg.no. mt05gm0096 alt c or latest if any. note: the firms with past performance of the tendered/same items subject to submission of proof of documents s uch as pos/r note are only eligible. [ warranty period: 30 months after the date of delivery ] ]