Luminous self-luminescent stainless steel up/down arrows on the subway station floor.

Stainless steel photoluminescent fire safety directional signs are essential auxiliary escape and evacuation indicators currently mandated for installation in rail transit systems. They must be placed on platform floors, station walls, and stair exits to direct towards safety exits. According to national regulations, these signs must be made of 304 stainless steel as the base material, incorporating long-afterglow photoluminescent powder.

     The subway photoluminescent evacuation sign system manufactured by our company absorbs visible light for 5-10 minutes and can continuously emit light in dark environments for over 12 hours. The luminescent effect has no half-life and can be reused cyclically for more than 30 years. As long as there is no human damage, replacement is unnecessary, making it a once-and-for-all solution. In emergencies such as power outages or fires in underground rail transit, these signs effectively guide crowd evacuation. With the rapid development of underground rail transit in recent years, the use of stainless steel products has become more widespread.

I. Product Features
1. Made of SUS304 stainless steel, durable and long-lasting, with a vertically brushed metal surface for an aesthetically pleasing appearance;
2. Surface pattern grooves can reach a depth of 1.2mm, with photoluminescent brightness higher than conventional market glow-in-the-dark signs, and不易脱落 (not easily脱落);
3. The photoluminescent part uses high-quality glow powder,无毒无害无辐射 (non-toxic, harmless, and radiation-free), with a safety coefficient higher than electrically powered evacuation indicators;
4. Easy and quick installation, no need for pre-wiring;
5. No power supply required, energy-saving, environmentally friendly, and safe.

II. Scope of Application:
    This product is not only suitable for subway projects but also for shopping malls, factories, supermarkets, etc. Currently, our products have been applied in urban subways such as Shanghai Metro, Hangzhou Metro, Shenzhen Metro, Wuhan Metro, Suzhou Metro, Changsha Metro, Xi'an Metro, Chengdu Metro, Nanchang Metro, and Shenyang Metro.

III. Dimensions and Patterns:
 210*230*5mm, using stainless steel base material, with the photoluminescent part made of our company's high-brightness优质夜光粉 (high-quality glow powder), providing bright luminescent effects with no half-life. Custom patterns, colors, and sizes are supported.

IV. Installation Method
Simply pre-groove according to the sample size, apply AB adhesive to the bottom during installation, and wait for it to solidify; alternatively, the product can be directly镶嵌其中 (embedded) through grooving.

V. Disadvantages and Advantages of Metal Processing Techniques

① Metal Casting Process
Disadvantages:
1: Long production cycle (mold development takes 15-21 working days);
2: Slightly heavier than etched metal parts;
Advantages:
1: High出货率 (output rate), once the mold is completed, daily output can reach at least 200 pieces;
2: Low per-unit cost for large quantity orders;
3: Deep groove depth;
4: Aesthetically pleasing surface with clearly visible metal streaks;
② Metal Etching Process
Disadvantages:
1: High报废率 (scrap rate);
2: Shallow groove depth and粗糙的表面图案 (rough surface patterns);
3: Negative impact on the health of加工工作者 (processing workers);
4: Causes environmental pollution;
Advantages:
1: Lower cost compared to cast parts for small quantity orders;
2: Shorter production cycle compared to cast parts;
③ Metal Engraving Process
Disadvantages:
1: Slow engraving speed, relatively time-consuming;
2: Engraved blanks require manual cleaning;
Advantages:
1: Convenient and quick sample production;
2: Significant advantage for urgent orders

VI. Other Notes
     For custom sizes and patterns, there is generally a minimum order quantity. The specific成品发货时间 (finished product delivery time) depends on the product manufacturing process and quantity. Welcome to call for consultation.