supply of fire bricks size in mm 230x113x65mm, name of brick- standard, as per table 1 specificartion:- to is 1526 : 1960 (reaffirmed 2022, incorporating 01 amendments).fire bricks size in mm 230x113x65mm, name of brick- standard, as per table 1 specificartion:- to is 1526 : 1960 (reaffirmed 2022, incorporating 01 amendments).,fire bricks size in mm 230x113x65mm, name of brick- standard, as per table 1 specifica rtion:- to is 1526 : 1960 (reaffirmed 2022, incorporating 01 amendments). [ warranty period: 30 m onths after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitt ed: max 8 lacs ] ]