Tira de sellado de PVC a la venta

PVC sealing strips have gone through an introduction period and a high-speed development period, which can be defined as the 1980s-mid-1990s and 1995-2002 in terms of time. After 2003, el Tira de sellado de puerta de PVC industry entered a transition period. In the product introduction period: manufacturers generally pursue low cost of Tira de sellado de PVC a la venta, a large amount of calcium carbonate is filled in the formula, resulting in low product performance, and many quality problems have affected the promotion of the product.