1. Micro-switch inside elevator push button, is imported from OMRON (Japan), which are several times more expensive than China domestic market micro switch.

 2. Connect wire, there are total 11 cores inside each wire, plating stannum, international standard.

 3. LED lamp, there are 4 pieces of LED lamp inside to light up, the LED is made and supplied by our group companies directly, so could ensure quality by ourselves, instead of usually buying LED directly from domestic electronic shop.