Concrete Bock:
Block dimension: 24"x24"x18"
Horizontal bedding plane on every 6.0"
Excavation face: 2.5", 7", 9"
Hole: diameter= 0.5" depth=6.0"
Pre-splitting spacing s=1.5"
Production line spacing s=3.0"
Explosive type: Nitrocellulose powder
Hurrah: Not that perfect but still great!!!
