采用優質不銹鋼整體鑄造精加工而成，耐腐蝕、撞擊、劃傷和磨損。鎖芯的構造設計精密，生產工藝先進，設計新穎，主要適用于人流量大的場所的門窗制造，如公共場所的樓層、辦公大樓、醫院、高速公路收費站、公園、體育場、輪船等。因為這些場所門窗使用頻繁，往往需要質量可靠而又便于維護的材料。防火工程鎖（不銹鋼）適用于防火門，經過國家嚴格的防火檢測。Theentirepieceofthelock,whichiscorrode-proofandabrasion-proof,iswell-madeofstainlesssteel.Thestructureofthecylinderiswell-designedwithadvancedproductiontechniques.Thismodelissuitableforthedoorsandgateswithhighpeople-flow,forexamplethedoorsinstalledinthepublicbuildings,officebuildings,hospitals,toll-stopgates,parks,gyms,ferries,andetc.Thesedoorsareopenedandclosedveryfrequently,demandinggood-qualityandmaintainablematerials.Fire-proofcommerciallock(stainlesssteelmade),whichpassedthestrictnationalfire-proofexam,isspeciallyappliedtofire-proofdoors.