Method of obtaining iron-magnesium refractory concretes
PL285005A1
Method of obtaining spinel-based refractory mix for construction and maintenance of steel-making furnace hearths in particular for those of o.h. furnaces
PL280982A1
Method of reducing sio2 content in chrome iron ore wastes
PL280487A1
Method of obtaining a magnesia/chromite binder
PL252639A1
Apparatus for recovering heat from rotary kilns
PL252583A1
Method of obtaining magnesia-spinel refractories
PL252581A1
Method of obtaining moulding sand base grain
PL252580A1
Method of obtaining a fusible refractory material
PL252582A1
Method of obtaining a material for use as base of protective coats to be applied onto castings
PL252176A1
Method of obtaining magnesium fertilizer
PL251943A1
Method of obtaining a magnesia-lime agent for intensification of cultivation of plants and growth of animals
PL247757A1
Suspended ceramic shape
PL247157A1
System for controlling working pressure of manually operated hydraulic presses
PL246979A1
Method of obtaining magnesium carbonate-silicate fertilizer
PL243965A1
Reinforced refractory brick
PL242804A1
Process for manufacturing basic refractories
PL242488A1
Method of manufacture of chromite-magnesite refractories
PL241899A1
Refractory for making hearths of heat furnaces
PL241393A1
Method of construction of hearths of industrial furnaces of non-ferrous metallurgy and articles therefor
