1. Using 304 stainless steel stamping.
2. Grinding surface treatment to enhance rust resistance and corrosion resistance.
3. Durable, long service life, will not break.
4. Double top wire design, no damage to aluminum.
Options: 1.buckle type, quick installation; 2. steel plate fixed, strong stability, not easy to swing; 3.no spot welding, not easy to rust, suitable for coastal cities; 4.bidirectional adjustable, adjustable parts will not fall to the window sash.