详情描述

The country has strict requirements for the production of anti-theft doors. Based on the time of resistance to destruction, anti-theft door safety levels are divided into four grades: Grade A, B, C, and D. Grade A is no less than 30 minutes, Grade B no less than 15 minutes, Grade C no less than 10 minutes, and Grade D no less than 6 minutes.

Security doors are available in two materials: steel and stainless steel. The steel thickness of the door frame should be at least 1.5mm, and the door leaf steel thickness should be at least 0.8mm. The door weight is generally over 40kg.