•  Choke bean is made of ceramic or hard alloy which has good  performance of wearing and rushing
•  Bonnet is adopt union connection that convenience to replace bean
•  working pressure ：2000PSI～20000PSI
•  nominal bore ：1.13/16～7.1/16 (46mm～180mm)
• working medium : oil , nature gas , mud , consist of H2S CO2gas
•  working temp.：-46℃～121℃（LU）
•  material ：AA、BB、CC、DD、EE、FF、HH
•  PSL：PSL1～4
•  PR：PR1～2