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- 28/09/1990
- متابع بواسطة 2 اشخاص
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- Specification and Types Of BoltA bolt is a type of threaded hardware fastener that is used to position two workpieces in specific relation to each other. the terms “bolt" and "screw" were often used, therefore they are frequently used interchangeably. The terminology has been differentiated by a number of standards groups, but many have come to the conclusion that it is not the devices themselves that differ, but...0 التعليقات 0 نشرالرجاء تسجيل الدخول , للأعجاب والمشاركة والتعليق على هذا!
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