1. The surface of the male thread elbow is smooth and free of burrs.
2. The new material is shiny and shiny, oily and smooth.
3. It is not easy to corrode, high temperature resistance, and strong usability.
4. Durable and not easy to crack.
5. Smooth inner wall and strong conveying force.
6. The surface is polished clean, the friction coefficient is small, and the conveying capacity is strong.