Specify the number series you need to label machinery, storage areas, and completed work in sequence. The largest character size will be used, up to 1/2" high.For styles A and B, please specify a starting number up to 15 digits.For style C, please specify a starting number up to seven digits.Aluminum plates are lightweight and resist corrosion better than brass plates. The plates with an anodized finish have added wear and corrosion resistance and are good for color coding. Brass plates withstand abrasion and wear better than aluminum plates. 304 stainless steel plates resist corrosion better than aluminum and brass plates. 316 stainless steel plates have excellent corrosion resistance.