bids are invited for custom bid for services - fabrication and erection of pipeline api 5l grade of size 100 nb to 200nb , custom bid for services - supply fabrication and erection of reducer class 150 of size 100mm to 200mm , custom bid for services - supply fabrication and erection of elbow class 150 of size 100mm to 200mm , custom bid for services - supply fabrication and erection of ms flange sorf class 150 of size 100mm to 200mm , custom bid for services - copper slag blasting as per scope of job , custom bid for services - supplying and applying primer on the prepared surface ie one coat of inorganic zinc silicate primer at 65 micron , custom bid for services - supplying and applying intermediate coat on the prepared surface ie one coat of tie epoxy coating at 75 micron , custom bid for services - supplying and applying finish paint on the prepared surface ie one coat of acrylic polyurethane coating at 40 micron , custom bid for services - supplying and painting two coats of high build coal tar epoxy at 125 micron coat , custom bid for services - wrapping and coating of pipeline by coal tar tape 4mm thick , custom bid for services - providing pipeline pad support for size of pipelines of size 200mm to 300mm , custom bid for services - flange jointing of pipeline joints of size 100nb to 200nb , custom bid for services - supply and erection of copper jumpers of size 40mm and thickness 3mm , custom bid for services - radiography of welding joints as per scope of job , custom bid for services - fixing of valves of class 150 of size 100nb to 200nb , custom bid for services - providing fire screes upto height 3m , custom bid for services - excavation of hard rock without blasting as per the scope of job , custom bid for services - supply fabrication and erection of structural steel for pipeline supports crossover structures etc as per the scope of job , custom bid for services - supply fabrication and erection of ms gratings for pipeline crossover etc as per the scope of job , custom bid for services - supply fabrication and erection of ms railing pipes for pipeline crossover etc as per the scope of job , custom bid for services - supply and laying of hume pipe of size 300mm diameter as per the scope of job , custom bid for services - excavation of ordinary soil without blasting as per the scope of job , custom bid for services - supply and filling of white river sand or dust as per the scope of job , custom bid for services - pcc in the ratio 124 as per scope of job , custom bid for services - rcc in the ratio 1153 as per the scope of job , custom bid for services - steel reinforcement for rcc , custom bid for services - letter writing as per the scope of job with size of the letter as 25mm total quantity :