Concrete reinforced concrete door Model series air defense air defense door (four General Staff Academy) reinforced concrete single fan guard closed doors, reinforced concrete protective barriers live closed doors 1 HFM0716 (5) 1 HHFM0820 (6) 2 HFM0820 (6) 2 HHFM0820 (5) 3 HFM0820 (5) 3 HHFM0920 (6) 4 HFM0920 (6) 4 HHFM0920 (5) 5 HFM0920 (5) 5 HHFM1020 (6) 6 HFM1020 (6) 6 HHFM1020 (5) 7 HFM1020 (5) 7 HHFM1220 (6) 8 HFM1220 (6) 8 HHFM1220 (5) 9 HFM1220 (5) 9 HHFM1320 (6) 10 HFM1320 (6) 10 HHFM1320 (5) 11 HFM1320 (5) 11 HHFM1520 (6) 12 HFM1520 (6) 12 HHFM1520 (5) 13 HFM1520 (5) 13 HHFM2020 (6) 14 HFM2020 (6) 14 HHFM2020 (5) 15 HFM2020 (5) single-leaf closed doors reinforced concrete, reinforced concrete closed door sill live 1 HM0716 1 HHM0820 2 HM0820 2 HHM0920 3 HM0920 3 HHM1020 4 HM1020 4 HHM1220 5 HM1220 5 HHM1320 6 HM1320 6 HHM1520 7 HM1520 7 HHM2020 8 HM2020 Henan Sheng-chun, air defense equipment specializing in the production of various types of air defense door; protective closed doors; steel protective closed doors; subway doors; enclosed observation window; electric gated. Various types of air defense door: single-leaf structure airtight protective structure single-leaf doors closed door sill structure of living single fan guard closed the door sill structure of living single fan airtight double-leaf door sill structure live live closed door structure mounted dual fan guard closed the door sill structure of living home-threshold double-leaf closed door structure threshold dual fan guard closed the door structure dual fan guard closed the door structure double-leaf closed doors reinforced concrete single fan guard closed doors reinforced concrete single-leaf closed doors reinforced concrete living threshold single fan guard closed doors reinforced concrete living threshold single-leaf door closed detachable hose explosion wave valve sealing iron frame (monolithic) hanging swing door price explosion wave valve air defense air defense door manufacturers _ _ Jin Sheng air defense air defense door door quality is guaranteed by the Civil Air Defense Equipment Co., Ltd. Henan Sheng-chun available. 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!