| 摘要 |
<p>A dryer having a drum, of high strength and which is easy to produce, is discussed such that the drum comprises a body formed b a rectangular metal sheet and a belt at the same length as the front side (K1) of the body, connected to said side through butt welding, and produced from a rectangular metal sheet with higher strength as compared with the body, said drum being constituted by bending and joining , so as to form a cylinder, the sides (K2, K3) that are perpendicular to the side (K1) connecting the body and the belt.</p> |
