The furnace i want to buy for my laboratory tests ,bottom loading furnace max temperature 1800C,working temperature 1700C . want to specify that i will use this furnace for melting varios materials ,so i have to open the furnace at 1700C.And now let me write general tecnical specification the furnace i need: 1.chamber size :200-200-200 2.max temperature 1800C working temperature 1700C 3.door bottom loading open must be fast 4.should reache 1800C in 2 hours 5.should based 1750 C for 3 hours 6.beause of i will open the door at 1750 C must be shochproof 7. Easy digital control panel Dear friend if you can give me reliable tecnical informations and real price get in with me please . greetings from Turkey hope for partnership with you.