1. According to the production process of stainless steel elbow, it can be divided into welding elbow, stamping elbow, hot pressing elbow, pushing elbow, casting elbow, forging elbow, clamping elbow, etc.

2. According to manufacturing standards, it is divided into national standard, ship standard, electrical standard, water standard, American standard, German standard, Japanese standard, Russian standard, etc.

3. According to the production method, it can be divided into extrusion, stamping, forging, casting, etc.