Steel doors: Features: A. Big circuit design It adopts the big circuit design and double layers to prevent being stolen, which not only strengthen the indensity of doorframe, but also makes it more elegant. It is obviously exquisite and graceful. B. Lockset Qualified lockset by the ministry of public security automatic lock controls all directional lock bolts, the lock point of mechanical lock works freely, upper&bottom side locking adopts connecting rod structure. The thickened lockset is caracterised by impact resistance and break resistance. C. Super strength The adjustable hing joint, which is thickened, wided and reinforced, makes the rotary bear bigger weight, The design is unique and the perfomace is superior. D. Lumious stealth doorbell With practicable and aesthetic value, it can be easily identified even in night and deliver external information. E. Peephole It is with the stainless steel super-wide visual angle, high definition, and quite exquisite. Through it the outdoor scenes are available to you. F. Renforced side lock point Adopt with reinforced side lock to keep the door safer and theft-proof, the user could use it reliable, safely and conveniently because of its seperate inner safty. Meanwhile, it is more safer and more steady in lock body. G. Surface treatment effect The surface through phosphatization heat treatment has the ultra strong effects of acid resistance, alkali resistance and corrosion resistance; The door surface looks bright and lustrous. H. Thickened door leaf, special slot to prevent being stolen Whit the special slot structure to prevent being stolen and 90mm thickness of door leaf, it has super strong impact resistance and better capability of preventing being stolen, and better performance with fourfold seals. Of course, we can manufacture according to your request.