What are the security locks core level knowledge
[ChinaGoodWood.com] security doors for anti-theft security door, the latest national standards “anti-theft security door general technical conditions”, the level of security locks core level can be divided into: a, b, c, d four levels.Frame according to the b, c, d anti-theft security level should choose MRN, 1.80 2.00 mm, respectively, l. 50 mm.The outside of … [Read more…]