How to check the adhesiveness of stickers

Before using different types of self-adhesive labels, it is important to test the type of adhesive. It is important to see if this adhesive is a self-adhesive, heat-sealing adhesive, or glued paper. Some adhesives react chemically with certain substances. For example, self-adhesive labels used as -----!

Is domestic CTP inferior to imported CTP?

Once upon a time, imported CTP equipment stood in front of us with a noble halo, loud brands, reliable quality, stable quality, overwhelming media advertising, and expensive prices. In the not-distant past, we are very proud of being able to assemble cars domestically. Highly integrated equipment -----!