1. The main raw materials for the Window Crown brand's EPDM are EPDM rubber produced by DSM in the Netherlands and DuPont in the United States. High quality raw materials are the fundamental guarantee of product quality.

2. The equipment adopts microwave vulcanization and infrared shaping, resulting in smooth overall lines, uniform color, and a matte texture on the surface of the product.

3. The design concept of the sealing strip mouth is advanced, and it is independently designed and processed to make the product's cross-section more reasonable and optimized, with a much higher yield than similar products.

4. Professional production, long-term focus on the manufacturing and processing of sealing products, extensive profile matching has accumulated rich experience, enabling it to quickly form its unique formula advantages in the building doors, windows, and curtain wall industry, optimizing its quality and cost.

5. The stability of the product is good, and its tensile tear strength far exceeds the national standard.

6. Under conditions of minus 40 degrees Celsius and high temperature of 160 degrees Celsius, the product's physical properties such as UV resistance, ozone resistance, and aging resistance remain basically unchanged, making it very suitable for use in areas with relatively harsh climate conditions and large temperature differences between day and night.

7. Provide a 20-year product quality assurance certificate to ensure your worry free use.