酸洗鈍化                                            酸洗鈍化

    
                  酸洗鈍化                                                                酸洗鈍化

    
                    酸洗鈍化                                            酸洗鈍化

    
                    酸洗鈍化                                            酸洗鈍化

    
                                 酸洗鈍化                                                                                 酸洗鈍化

    
                                 酸洗鈍化                                                                                 酸洗鈍化

    
                                 酸洗鈍化                                                                                 酸洗鈍化

    
                                 酸洗鈍化                                                                                 酸洗鈍化

    
                    酸洗鈍化                                            酸洗鈍化

    
               精鑄件（失蠟法）                                精鑄件（失蠟法）


                              精鑄件（失蠟法）

    
                 型沙法鑄件                                            型沙法鑄件


                               型沙法鑄件

         
                    酸洗鈍化                                              酸洗鈍化                                              酸洗鈍化