| 摘要 |
A skew-back channel of heating unit is arranged of metal sheets that are rigidly connected as hollow frame with water supply and water discharge pipes, with L-like cross section formed with vertical sheet, shaped sheet adjoining it, vertical wall, upper sheet and side elements, and provided with inner buckles. The buckles are arranged as metal plates in rectangular shape, at that each of the plates with one side is rigidly fixed to the inner surface of vertical sheet, and with the other end it is rigidly fixed in cuts provided in vertical wall connected to it. |
