miscellaneous structural works at plant , miscellaneuos structural work at plant ( 2020 ) , dismantling , removing and lowering ac/gi sheets from cladding/roofing at all elevations , roofing/cladding with departmental ac/gi sheets with bolts and nuts , gi limpet washer etc . complete at all elevations . , fabricating and erecting , and fixing in position all built up sections including ms plate works , columns , purlins , bracings , anchor plates etc welded or bolted as per design and drawing at all elevations including two coats of metal primer of approved quality etc . , complete as directed by the engineer-in-charge , dismantling of steel structural work at all elevations and stacking the same at places pointed out by the engineer-in-charge etc . complete , painting structural steel with enamel paint of approved brand and manufacture in all shades to give an even finish etc . complete as per directions at all heights for 2 coats . , supply of skilled welder to assist the department . , supply of skilled fitter to assist the department . , supply of helper to assist the department .