Sinking construction device for assembly type underground building
Sinking construction device for fabricated underground building
Sinking construction device for fabricated underground building
Sinking construction device for fabricated underground building
Sinking construction device for cast-in-place underground building
Sinking construction device for bottom on-site construction upper assembly type underground building
Sinking construction device for cast-in-place underground building
Sinking construction device for bottom on-site construction upper fabricated underground building
Sinking construction device for bottom on-site construction upper fabricated underground building
Sinking construction device for cast-in-place underground building