(1) The use of fabrics to achieve the corresponding product national standard quality indicators.

(2) The production process: fabric and coil connection with high-frequency welding contact, fabric and the lower pole using high-frequency welding contact to ensure that the fabric and the lower bar as a whole structure, so that the normal operation of the product. Both sides of the fabric are treated with ultrasonic.

(3) Shading Fabric: The use of the coating fabric can block light.

(4) Sunlight fabric: Using glass fiber +PVC fabric which can block visible light.