To create the dark metal finish on the two upper levels, these blocks are clad with Galvalume - a type of steel sheet that is coated with an aluminium and zinc alloy.
为了在上两层创建黑色的金属饰面，这些体块都包裹了铝锌合金镀层——这是一种镀有铝锌合金的钢板。
The utility model relates to a fresco type electric heating heater, which is composed of an electric heating diaphragm, heat radiating sheet, a paper painting, and an aluminium alloy outer frame.
本实用新型涉及到一种壁画式电热取暖器，它由电热膜片、散热片、纸画、铝合金外框组成。
The pulsed current peak value and EP time have a important effect on removal of the surface oxide, the lower frequency should be adopted for thin sheet of aluminium alloy.
脉冲电流幅值和EP半波时间对铝合金表面氧化膜的清理有重要影响，在焊接薄板铝合金时应采用较低的脉冲频率。
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