We strictly control our product quality with complete testing equipment. We inspect the entire process from production to finished products. We check the incoming raw material before production, we test product performance during production by checking the first 100 meters and the last 100 meters of each coating batch, along with sampling tests during the mid-production process. This ensures consistent product quality throughout the manufacturing process. After the finished product is slit, sampling tests are carried out as a final quality check before shipment.