On completion of shell to bottom welding / NDT and having completed all erection and welding work on the tank inside related to the roof and roof structure, all unwanted materials and scrap shall be removed from inside of the tank.
On completion of shell to bottom welding / NDT and having completed all erection and welding work on the tank inside related to the roof and roof structure, all unwanted materials and scrap shall be removed from inside of the tank.