How to choose atmosphere furnace?

Temperature

1200℃, 1400℃, 1700℃, 1800℃

Chamber size(customizable)

1L(100*100*100mm), 4.5L(200*150*150), 12L(300*200*200) and 36L(400*300*300)

Note

If the hydrogen content greater than 4%, then the hydrogen protection device needs to be selected