Double-ended lithium battery fastener bolt wrench

Abstract

1. The name of this design product: Double-head lithium battery fastener bolt wrench. 2. Purpose of the product with this appearance design: The product with this appearance design is mainly used for tightening and loosening bolt pairs of various types of sleeper fasteners during the laying of new railway lines and the maintenance and construction of existing railway lines. Suitable for coarse and fine adjustment of fastener bolt pairs. 3. The design key point of this design product lies in the shape of the design product. 4. The picture or photo that best illustrates the key points of the design: 3D drawing of Design 1. 5. Designate Design 1 as the base design.

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