Zhejiang Industry and Trade Fordyce for everyone to popularize Door specification GB doors generally have four sizes, thickness: security doors can be divided into single layer thick. Security door monolayer thickness is usually about 2 cm, about 1 cm if there is security doors on the market, it can only be regarded Safety Doors Door wholesale category does not belong to the security door. Thick security doors can be divided into three types: 3 cm and 5 cm, 7 cm. 3 cm thick micro belong, are in the thick security doors wholesalers 5 cm, 7 cm thick belongs little security door prices generally 7 cm anti-theft door, usually only special selection of luxury homes will . Zhejiang Industry and Trade Fordyce teach you how to choose a good security door to identify: 1: Check whether the lock by the public security department detected using a qualified special anti-theft lock, if the lock is installed at reinforcing steel protection. 2: process quality inspection of products, whether or not there are welding defects, doors and door frames with whether compacting. 3: Dian Dian Door weight, regular security doors weighing not less than 40 kg. How much security door, reasonable price Fordyce and Trade (online consultation), Hunan security door provided by Zhejiang Industry and Trade Co. Fordyce. Zhejiang Fordyce Ltd. (www.cngusite.com) quality of service and products, continue to receive the recognition and trust of new and old customers and the industry. Our company is a certified member of the whole alliance network operators, business alliance customer service icon on the page, you can talk directly with our customer service staff, to our future cooperation happy!