RF2K2K4F1–Excavation pit is secured against collapsing with iron girders and timber

RF2J4GNBP–Excavation pit is secured against collapsing with iron girders and timber

RF2K2K4FP–Excavation pit is secured against collapsing with iron girders and timber

RF2K2K4F8–Excavation pit is secured against collapsing with iron girders and timber

RF2J4GNCN–Excavation pit is secured against collapsing with iron girders and timber

RF2K2K4EX–Excavation pit is secured against collapsing with iron girders and timber

RF2J4GND6–Excavation pit is secured against collapsing with iron girders and timber

RF2K2K4FB–Excavation pit is secured against collapsing with iron girders and timber

RF2J4GNCC–Excavation pit is secured against collapsing with iron girders and timber

RF2K2K4F9–Excavation pit is secured against collapsing with iron girders and timber

RF2K2K4FA–Excavation pit is secured against collapsing with iron girders and timber

RF2K2K4FD–Excavation pit is secured against collapsing with iron girders and timber