The crown of many antique watches is very precious. Due to age or rust, the crown and the screw cannot be separated. The wire is already rusted, sometimes it is broken in the crown, and it is repaired. Said to be very depressed, but the screw is good to change, but also to do, but the logo on the crown also represents the value of the table! The broken head must be taken out without hurting the crown. The first is to anneal the tip, and then use the tool steel or the front steel (hardness of about 70) to open the section of the broken head. Generally, it is opened in a shape. After opening the mouth, it has to be quenched once, otherwise the section is soft and cannot be Screw it out smoothly, and finally use a flat-blade screwdriver to unscrew the broken head counterclockwise (some are the opposite) to ensure that the crown remains intact. If it is completely necrotic, it is also a helpless way to use a drill with a smaller diameter to drill the broken head and then use the wire to attack it. If it is still stubborn, there is a more powerful way to take it out. In short, operate under the premise of protecting the crown. Poly Chiffon Fabric,Polyester Chiffon Solid Fabric,Plain Polyester Chiffon Fabric,Fabrics Polyester Chiffon Shaoxing City Laiteng Imp.&Exp Co.,Ltd , https://www.laiteng-tex.com
