advantages:
1. Male and female cap is shaped by mold in unified size and connection is easy
2. Size: internal diameter 5, 6, 7, 8, 10, 12 inch available
3.Degree:30, 45, 90 degrees.
4. Material: SUS304, 316L
5. Steel wall thickness: 0.5mm standard
6. Insulation: mineral insulation, 128kg/m3
7. CE certified