Transition connecting pipe (expansion rock breaking)

Abstract

1. The name of this design product: Transition connecting pipe (expansion rock breaking). 2. Purpose of the product with this appearance design: A connector for mining expansion cords used in safe blasting operations, specifically used to connect and insert and position mining expansion cords in large-diameter drilled holes in the roof of a tunnel, to achieve a specified depth for the roof or to reduce the number of mining expansion cords used. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

Images