... safe box 1.Cold rolled sheet steel 2.single&double door is optional 3.Electro-static powder coating,antirust 4.customi ... strongbox with security 1>Material:* Cold rolled sheet steel for making door and body.Door thickness: 3-10mmBody thickness: 1-5mm* Internal ... , household safe, security safe box, electronic safty box,* Ideal for home use, to keep valuable items, such jewelry, digital equipment ...