HomepageYelenaJigsaw puzzles added by YelenaScience Jigsaw puzzles added by Yelena with Science tag Follow Recently added puzzles 198Make a puzzle and describe one of the schemesYelenasolved 16 timesSolve puzzle160Compressed gas cylindersYelenasolved 75 timesSolve puzzle140Scheme of welding posts for welding in protective gasesYelenasolved 21 timesSolve puzzle126Welding post for welding in protective gasesYelenasolved 29 timesSolve puzzle192TB for gas weldingYelenasolved 27 timesSolve puzzle135Equipment for oxygen-fluid cuttingYelenasolved 48 timesSolve puzzle60Water supply systemYelenasolved 27 timesSolve puzzle
