These two are what we call the European style extension line, one is 30 meters, the other is 50 meters. The commonly used packaging method is the round package that we see now, and the nylon bag is used to cover and fix the card. This European style line is also produced by us all the year round, and there are many companies cooperating with us. At the beginning, they started to produce in small quantities, but later they gradually believed in us. Be a regular partner. It is precisely because of our integrity, we have a lot of quality assurance in the price of the same year and won a lot of public praise