... plate: 1.0mm/0.8mm; Name: Security steel door, Interior steel door, Entrance steel door1, Certificate approved by: ISO 9001: 2000; ... Environmental protection; other quality certificate;2, Materials: steel, galvanized steel sheet, cold-rolled steel, ... rubber seal, steel installation bolt6, Easy to install but with security lock system more than 13 lock-bolts; Package: plastic film ...