企业公告：
企业公告：
The paper tube of the fireworks tube is processed and customized according to customer requirements
Customized processing of paper tube and tube
Lazy rag white cardboard tube
How to roll out stronger paper tubes? Wet it with water first, then roll it with force, try not to have bubbles, and apply white glue inside, and then dry it with a hair dryer< Br>What is the weight of the paper tube? The calculation formula of paper tube weight: weight=(inner diameter+wall thickness) * inner diameter * 3, 14 * 0.77 * 1.1 * length.
