... :600-1100mm 2.door weight:45-60kg 3.hole distance:132x19mm 4.double spring strong load 5. similiar size with A- ... Testing of Fire Building Materials. 8. Applicable for wood door,steel door,fire door,etc.9. Colour options: Silver, black, gold,white. ... , parallell, sliding-rail on the door.14. Self quality test for oil(temperature test), spring & operation of door closer(durability test)15. Test cycles ...