Comsumer flash powder as in black cat firecracker are a fairly weak flash comp generally made up of a coarser metal and class b fireworks metal partical size are usually in the 1-5 micron range. If...
Type: Posts; User: chris v
Comsumer flash powder as in black cat firecracker are a fairly weak flash comp generally made up of a coarser metal and class b fireworks metal partical size are usually in the 1-5 micron range. If...
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