Good afternoon!For the needs of our own production, we are looking for a 2 MW burner.The fuel for the burner is low-quality coal anthracite (sludge).Coal is different in quality indicators:Ash content - 20-30 %Ash content - 30-40 %Ash content - 40-50 %Ash content - 50-60 %Fraction, mm - 0-0,5Fraction, mm - 0,-0,1Interested in the price and delivery time.Is it possible for you to send samples of our material (coal) for testing the burner? If so, please tell me how much material (how many kilograms) is needed for testing?