防伪黑 · 黑色油墨效果

Name: 防伪黑 · 黑色油墨效果
Uploaded: 2026-08-01
Duration: 13 s
Description: 深佳恒防伪黑油墨实测：黑色纯正、遮盖力强、印刷稳定，用于票据、包装与证件防伪。 SJH anti-counterfeit black ink test: pure black, strong coverage and stable printing - for tickets, packaging and document security.