procurement of mn group items for the year 2023-24 , brass rod round as per is:4170-1962 & is:320-1962 of following size:- , 10mm , 15mm , 32 mm , 50 mm , 60 mm , 90 mm , 100 mm , brass rodsquare as per is:4170-1962 of following .size:- , 32 mm , 27 mm , brass rod hexagonalas per is4170-1962 & is :320-1962 offollowing size:- , 36 mm , 42 mm , gun metalrod is: 318-1981 and is-10742: 1987 offollowing size:- , dia 40mm , cast gun metalpipeis: 4131-1967offollowing size:- , id-15mm, od-50mm , id-20mm, od-65mm , id-25mm, od-60mm , id-25mm, od-55mm , id-30mm, od-55mm , id-35mm, od-55mm , id-35mm, od-60mm , id-70mm, od-95mm , copper rod as peris: 2862-19730 offollowing size:- , 20mm , copper pipe as per is 1545:1995 of following size , id-12.5mm, od-16mm , id-18mm, od-22mm , ptfe teflon rod , 32 mm , 40 mm , 50 mm , 90 mm , 200mmx300mmlong , nylon tube offollowing size:- , id 6 mm, od 8mm , pvc flexible sheet to with stand pr 6kg/cm2 and having 80-90 ton shore hardness. sheet width minimum 1200 mm of foll. sizes , 3mm thickness , 5mm thickness