1. The machine head is made of cast steel that ensures high strength; 2. Microcomputer control, manual/automatic operation, 8 bending pipe angles can be set, and the memory can store as many as 9 groups of data; 3. Three-segment circuit, function of cooling, provides the largest space for bent pipe; 4. Simple crank and elbow design that provides the largest space for bent pipe; 5. Guardrail design that prevents from being injured due to clamping.