CONSIDERATIONS TO KNOW ABOUT 4.3″ BARREL

For the reason that mid-nineteenth century, synthetic black dyes have mainly changed pure dyes. One of the important synthetic blacks is Nigrosin, a mix of synthetic black dyes (CI 50415, Solvent black 5) made by heating a mix of nitrobenzene, aniline and aniline hydrochloride while in the presence of the copper or iron catalyst.In Japan, Famitsu g