That nonferrous metal deposits usually associated with silver is a common phenomenon, and this kind of deposits constitute the main part of silver mineral resources in China.
有色金属矿床伴生银是一种十分普遍的现象，在中国则构成为银矿资源的主体。
This paper studied the new method of deep drawing of cold rolling steel-metal part and the die structure. And it also proposed the strength calculation method of main die component.
研究了冷轧薄钢板零件的深拉伸新方法和模具结构，提出了模具主要元件的强度计算方法。
Main product: Packing aluminum metal alloy mould Knife mould mechanical series Electronics nicety washes mould Precision testing machine Precision part.
公司主要产品：吸塑铝合金模具；刀模机械系列；电子精冲模具；自动化机电设备；精密检治具；精密零件。
A connecting pillar of electrical main is arranged on the end part of the electric heating metal rod and is connected with anode and cathode of a vehicle battery jar.
电加热金属棒端部设置电源线连接柱通过导线与车辆电瓶电源正负极相连 接。
A connecting pillar of electrical main is arranged on the end part of the electric heating metal rod and is connected with anode and cathode of a vehicle battery jar.
电加热金属棒端部设置电源线连接柱通过导线与车辆电瓶电源正负极相连 接。
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