Pic Title: 常见螺丝规格与标示 Related Phrase: Common screw specifications and labeling Related pictures: 常见螺丝规格与标示 Source: http://www.coccad.com/ Pic Description: 　　螺柱設計規範－螺柱設計經驗|機械設計- Coccad.com 1.5 常見螺絲材質 a. 低碳鋼 No. / 5 Picture               Slide Show

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