gun safe box made of steel plate,,from 1.2 mm to 6mm thick Hua Cheng Office furniture Company is the top 5 steel office furniture manufaturer in China, we are located in Luoyang,Henan Province. visiti our website at ubsteelcabinet dot com. We are speciallized in manufature all kinds of steel furniture like office table,computer desks,file cabinets,school furniture,bunk bed, library furniture, ...