Key

The utility model provides a key. The key comprises a base and welding legs, the welding leg comprises a welding part and a clamping part, the clamping part is inserted into the base and clamped on the base, and the welding part is connected with one end of the clamping part. The key provided by the utility model comprises the base and the weld leg, and the weld leg is provided with the clamping part and is clamped on the base through the clamping part, so that the weld leg is mounted and fixed, and the structure of the weld leg is simplified. Compared with two weld leg structures introduced in the related technology, the weld leg provided by the utility model can be installed through machining after the injection molding of the base is completed. As the welding legs can be mounted after the injection molding of the base and do not need to be bonded through a chemical agent, the welding surfaces of the welding legs do not need to be protected when the keys are processed, the welding surfaces of the welding le