... 3. Good quality at favorable price 4. Customized specification Corona-treated pp correx sign board Specifications1. Length(mm): random 2. Width(mm ... construction, etc.)8. Special treatment: anti-static, conductive, UV stabilized, corona treated, round corner, attach EVA, flocking or foam, seal edge ... VECTRON, MIDEA, HITACHI, SAMSUNG, TCL, ZTE, etc. for many years. Corona-treated pp correx sign board