◆ Design Standards: GB/T12235 
◆ weld dimensions: ANSI B16.25 
◆ Structural length: GB/T12221 
◆ Test Standard: JB/T9092 
Main Performance Specifications: 
◆ Nominal diameter: 15 ~ 150 
◆ Nominal Pressure: PN16 ~ PN420 
◆ Suitable temperature: ASTMA216-WCB ≤ 425 ℃ 
◆ Suitable medium: water, steam, oil, acids corrosive media