And then, I think it's good to buy some drawing or painting materials.
然后我想可以买些素描或绘画用品。
Structural Materials: Steel, Metal, New Steel, Steel structure designing, analyzing and drawing software.
结构建材：钢铁、各种金属、钢结构新产品；钢结构设计、分析、绘图软件。
Any drawing materials are acceptable.
任何绘画材料是可以接受的。
Then the cylinder deep drawing test with three different materials is carried out.
而且还对三种材料进行了圆筒拉深实验。
Then the cylinder deep drawing test with three different materials is carried out.
而且还对三种材料进行了圆筒拉深实验。
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