1.the inner and outer frum are made of stainless steel plate. 2.the water can be steam or electric as heated resource. 3.The industrial washing machine can be used in hotel,hospital,rastaurant,factory,fabric,clothes,print and so on,Welcome to visit us. 4.pls see the stable below about the technical paremter. Type:GX70 Max.Washing capacity:70KG Drum Dimensions:Φ950*1220 Speed:34r/min Power:2.2KW Steam pressure:0.4-0.6Mpa Overall dimensions:2050*1300*700MM 5.Pls see the picture: