Standard:
 ◆ Design Standards: GB/T8527
 ◆ Flange Standard: GB/T9113
 ◆ Structural length: GB/T12221
 ◆ Test Standard: GB/T13927
 Main Performance Specifications:
 ◆ Nominal diameter: 50 ~ 4000
 ◆ Nominal Pressure: PN10 ~ PN50
 ◆ Suitable temperature: ASTMA216-WCB ≤ 425 ℃
 ◆ Suitable medium: water, steam, oil, acids corrosive media