... moving arm against erodent.6. Self closing with/without hold-open feature; non-handed.7. Passed the fire-testing by National ... Testing of Fire Building Materials. 8. Applicable for wood door,steel door,fire door,etc.9. Colour options: Silver, black, gold,white. ... full.13. Installation types: vertical, parallell, sliding-rail on the door.14. Self quality test for oil(temperature test), spring & ...