carbon steel tubing 碳素钢管
seamless steel tubing roll 无缝钢管轧机
Welded Steel Tubing For Furnitures 家具用焊接钢管道
Stainless Steel Tubing 不锈钢管材
seamle steel tubing roll 无缝钢管轧机
The ancient-dream was finally realized in 1940 when a Russian engineer piloted a strange looking craft of steel tubing with a rotating fan on top.
这个古老的梦想终于在1940年实现了。当时,一名俄罗斯工程师驾驶了一艘外形奇特、顶部装有旋转风扇的钢管船。
Shoulder stock is made from thin steel tubing and folds forward and to the right.
肩的股票,从细钢管作出向前折叠的权利。
The airframe is built of steel tubing, with aluminum wings, for a basic empty weight of 628 pounds.
该型飞机采用了钢管机身框架,铝制机翼,基本型空重628磅。
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