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Chapter 11 SPECIALIZED BLASTING TECHNIQUES

Chapter 11 SPECIALIZED BLASTING TECHNIQUES

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precast holes, so it is necessary to punch two diagonal holes. First, a hole is punched through the charge with the punch end of the crimper. Then, the charge is rotated one quarter of a turn, and a second hole is punched slightly deeper than the length of the cap. The fused cap is then laced through the first hole and the cap is

  Diagonal

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