We have two six-ton boilers, each with 150 two-inch pipes, 40 pressure. We want to remove the old pipes and install new ones. We also have two heat exchangers, each with 60 two-inch pipes. We want the same thing, replacement. Required: A lump sum price for each boiler. Location: Al-Kharj - Industrial City. Welding: DC 7018, 2.5 mm.