supply of master setting ring gauges are standard gauges for pre-setting the zero error maintenance of bore gauges during the measurement of diameter of end shields consisting of 21 different bore gauges as per attached annexure-a. material as per is 7018(part-1)-1983/ is 3748 -1990 and general tolerance as per is 3485 1983/ din 2250 part-1. makes: mj trading/ paragon instrumentation/ mitutoyo/ insize/ baker. note: 1) item to be supplied along with valid calibration test certificate of 01 year validity period from nabl accredited/ govt. labs. 2) all gauges shall be supplied in suitable wooden/metal case box for easy transportation to onsite.master setting ring gauges are standard gauges for pre-setting the zero error maintenance of bore gauges during the measurement of diameter of end shields consisting of 21 different bore gauges as per attached annexure-a. material as per is 7018(part-1)-1983/ is 3748 -1990 and general tolerance as per is 3485 1983/ din 2250 part-1. makes: mj trading/ paragon instrumentation/ mitutoyo/ insize/ baker. note: 1) item to be supplied along with valid calibration test certificate of 01 year validity period from nabl accredited/ govt. labs. 2) all gauges shall be supplied in suitable wooden/metal case box for easy transportation to onsite.,master setting ring gauges are standard gauges for pre-setting the zero error maintenance o f bore gauges during the measurement of diameter of end shields consisting of 21 different bore gauges as per attached annexure-a. material as per is 7018(part-1)-1983/ is 3748 -1990 and general tolerance as per is 3485 1983/ din 2250 part-1. makes: mj trading/ paragon instrumentation/ mitutoyo/ insize/ baker. note: 1) item to be supplied along with valid calibration test certificate of 01 year validity period from nabl accre dited/ govt. labs. 2) all gauges shall be supplied in suitable wooden/metal case box for easy transportation to onsite. [ warranty period: 12 months after the date of delivery ] [quantity t