Steel Series air defense door models (four General Staff Academy) single-leaf steel protective closed doors, steel double-leaf door closed Protection 1 GFM0716 (6) / (5) 1 GSFM2525 (6) / (5) 2 GFM0820 (6) / (5) 2 GSFM3025 (6) / (5) 3 GFM0920 (6) / (5) 3 GSFM3030 (6) / (5) 4 GFM1020 (6) / (5) 4 GSFM4025 (6) / (5) 5 GFM1220 (6) / (5) 5 GSFM4030 (6) / (5) 6 GFM1320 (6) / (5) 6 GSFM5025 (6) / (5) 7 GFM1520 (6) / (5) 7 GSFM6025 (6) / ( 6) 8 GFM2020 (6) / (5) 8 GSFM6025 (6) / (5) 9 GSFM6030 (6) single-leaf steel door closed, steel double-leaf door closed 1 GM0716 1 GSM2525 2 GM0820 2 GSM3025 3 GM0920 3 GSM3030 4 GM1020 4 GSM4025 5 GM1220 5 GSM4030 6 GM1320 6 GSM5025 7 GM1520 7 GSM6025 8 GM2020 8 GSM6030 Henan Sheng-chun, air defense equipment, Ltd. was established in 2014, Henan Province Civil Air Defense designated air defense air defense door manufacturers door installation, such as your air defense professional civil air defense projects are in any doubt door manufacturers, air defense may call our door, business manager Zhou Ming enthusiasm to answer your questions! Air defense projects protective closed doors and closed the door from the appearance of what is the difference? In fact, air defense projects protective closed doors and closed doors is not much difference, but different thickness, the thickness of the protective closed doors about 20 cm, closed the door thickness of about 18 centimeters, the other no difference. If air defense doors in doubt, call the Civil Air Defense Equipment Co., Ltd. Henan Sheng Jin, business manager Zhou Ming enthusiasm to answer your questions! Door air defense supplier, Jiyuan City air defense doors, Jin Sheng factory direct air defense provided by Henan Sheng-chun, air defense equipment Limited. Henan Jin Sheng air defense equipment Limited (www.jsrenfang.com/) strong, credible, in Zhumadian other industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Jin Sheng air defense and you hand into the brilliant, for a better future!