FrostHeater

Container – Thawing

15. June 2013

Container – Lifting by crane

15. June 2013

Thawing prior to leveling and casting

15. June 2013

Defrosting prior to manhole repair

15. June 2013

A trench in moraine mass

15. June 2013

Frost-free sand heaps

15. June 2013

Stone laying

15. June 2013