Videos 73. Coke oven – firing 74. Coke oven – burning coke, flame 75. Blacksmith’s hearth – coke, temperature 76. The anthracite fire 77. Retort – burning anthracite type carbon 78. Anthracite walnut – transparent flame 79. Anthracite – blue flame 80. Test na wykrycie niespalonej sadzy w spalinach Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13
