supply of precoated galvanised iron profile sheets size shape and pitch of corrugation make tata jindal jsw coloron plus isi or as approved by engineer in charge 0.50 mm 0.05 total coated thickness with zinc coating 120 grams per sqm as per is 277 in 240 mpa steel grade 5 7 microns epoxy primer on both side of the sheet and polyester top coat 15 18 microns. sheet should have protective guard film of 25 microns minimum to avoid scratches during transportation sheet size 10 feet x42 inch
