1. Printing content: freely specified by customers.

2. Length range of number tube: freely specified by customers

3. Inner diameter specification of number tube: 3.0-30, freely specified by customers

4. Paragraph connection mode: automatic half cutting, continuous connection between number tubes, easy to peel

5. Number tube material: heat shrinkable number tube environmental protection, flame retardant, insulation, temperature resistance; PVC blank sleeve oil resistance, aging resistance, good acid resistance, not easy to fade, good insulation.

6. The heat shrinkable number tube, PVC sleeve and ink meet the requirements of EU ROHS environmental protection directive.

7. Number tube paragraph arrangement: random combination

8. Printing content: freely specified by customers. Simplified Chinese. Case English. Electrical symbols. Special symbols can be combined at will. As long as the computer keyboard can input

9. Color: white, black, yellow and other colors.