Place of Origin
                            Zhejiang, China (Mainland)
                         
                        
                        
                        
                        
                        
                        
                        
                        
                            Mould type
                            Tungsten steel
                         
                        
                        
                            Processing
                            Sintering - Powder Metallurgy
                         
                        
                        
                            Material
                            Iron/copper/steel/OEM
                         
                        
                        
                        
                        
                            Surface treatment
                            High frequency quenching ,oil impregnation
                         
                        
                        
                            Quality control
                            100 % inspection
                         
                        
                        
                            Application
                            Door closer parts
                         
                        
                        
                            Product type
                            automatic door closer gear