Standard of Vault Door Level

	Item	Standard
1	Appearance	Without any bulge, groove and scratch on the surface. When the door is closed, the bulge or groove is within 1.5mm compared the surface of doorframe
2	Structure	The components of the door should include main door, doorframe, lock, doorbolt and stainless steel gate. The Vault Door should have self-lock device (the door will auto lock if the door is abnormally opened); the device should be flexible. The crack between the main door and doorframe should be smaller than 2.5mm. And with the bottom should be smaller than 5mm. Besides, inside room should not be seen through the crack.
3	Flexibility	≤147N
4	Anticorrosion	Except bearings, iron and steel parts shoud be glazed, electroplated, galvanized, metallisation or other methods to anti-corrosion. Springs and other parts can accord to the prospective performance and concrete structure. The bearing can resist gluing caused by corrosion. The material which can cause battery current action can't be combined used.
5	Lock	There should be more than two locks (including two) and the level of at least one lock should be 1 or 1R.
6	Subversion Resistance	Tools of subversion: general machine tools, electric tools, cutting tools and combiantion of them. Level M ≥ 0.25h Level A ≥ 0.5h Level B ≥ 1h Level C ≥ 2h