The method of the invention is also suitable for the production of other thin-wall sections such as I-beam, U-beam, flat bulb steel, angle steel, etc.
本发明方法对工字钢、槽 钢、球扁钢、角钢等其它薄壁型材的生产也十分适用。
A gas-plasmadisplay is the best type of flat screen. Like a neon light bulb, the plasma display uses a gasthat emits light in the presence of an electric current.
等离子显示器是平板显示器中最好的一种，像霓光灯泡，等离子显示器在电流存在的情况下使用一种发光的气体。
Two live wire contacting points on the sliding plate are in flat form, which reduces resistance force when the bulb is screwed, and the bulb is uneasy to be damaged.
滑动板上的两个火线触点为平面形的，使拧装灯泡时阻力小不易损坏；
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