provision of ammunition shelter , the work consists of manufacture and supply of pre-fabricated amn shelter of size 18900x 6100mm incl false ceiling over the entire area complete . the clear height of shelter will be 3 . 60 mtr finished floor level to false ceiling . the manufacturer ensure about all the materials incorporated should comply to relevant bureau of india standard specifications ( isi mark ) and will be of good finish & as per specified size . . the shelter shall be erected on 600mm high ( above gl ) pcc block wall , plinth all as per drawing attached . the floor shall be finished with 75 mm thick pcc type b-1 ( 1:2:4 ) over pcc subbase type d-2 ( 1:4:8 ) . all doors , windows frames will be made of materials of standard size of isi mark and have a good finish . all steel surface should be painted with two coats of synthetic enamal paint over of red oxide . the rate of the shelter including all neccessary nut , bolts & washers as per manufacturs instructions , and including lc , electrification , s complete with isi mark .