Metallic materials. Tube (in full section). Bend test.
金属材料。管材(全截面)。弯曲试验。
Introduce the new method and equipment about metallic materials forging test.
介绍了金属材料顶锻试验的方法和设备。
The sealing ring by a similar to the rubber or plastic non-metallic materials.
该密封圈由一种类似于橡胶或塑料的非金属材料制成。
The sealing ring by a similar to the rubber or plastic non-metallic materials.
该密封圈由一种类似于橡胶或塑料的非金属材料制成。
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