supply of survey drawing material at katras area please refer to nit , ammonia paper 10 mtr x 102 cm , ammonia liquid , tracing cloth 100/102 x 18 mtr libra , tracing film 36 micron , tracing film 50 micron l-18 mtr , w- 1016 mm , tracing film 75 micron , tracing film 100 micron , tracing film 125 micron l-18 mtr , w- 1016 mm , mettalic tape 100/30 mtr , steel tape 100/30 mtr , sketch pen product no . 920 , rottering pen 0 . 1 , 0 . 2 , 0 . 3 , 0 . 4 , 0 . 5 , 0 . 6 , 0 . 7 , 0 . 8 , rottering pen ink black , blue , red , green , bur/sw , erazer br-80 , erazer t-20 , pencil hb , h , 2h , 3h , 4h . , coloured pencil ( big ) l-175mm x 7mm di , cello tape ( transparent ) l- 65 mtr , cello tape ( coloured ) l- 65 mtr , measurement book 200 pages ( big ) , field book 200 pages ( big ) , level book 200 pages ( big ) , stencil set with loose plate , rottering pen set , levelling staff ( alum ) 6 mtr . , survey umbrella