cs pipes design, engineering, manufacturing, procurement of materials and bought out components, assembly at shop, testing at manufacturers works, inspection by tpia, packing, supply of cs pipes , group-a- consist of items boq items 1.0 to 7.0 , .75 in x s-xxs seamless, pipes, asme b36.10, astm a106 gr.b + sour service, be, -, -, -, , .75 in x s-xxs seamless, pipes, asme b36.10, astm a106 gr.b + sour service, pe, -, -, -, , 14 in x s-20 seamless, pipes, asme b36.10, astm a106 gr.b pe coated, be, underground service -, -, , 28 in x 12mm saw, pipes, is 3589, is 3589 gr.330 epoxy lined & pe coated, be, underground service -, -, , 40 in x 12mm saw, pipes, is 3589, is 3589 gr.330 epoxy lined & pe coated, be, underground service -, -, , 8 in x 6mm saw, pipes, is 3589, is 3589 gr.410 epoxy lined & pe coated, be, underground service -, -, , 1.5 in x 4mm erw, pipes, is 1239 part 1, is 1239 part 1 galv., nptm ends, pe coated, underground service -, - => limited