... during drilling 3.Apply to all kinds of casing Multi-block wellheadPressure2000PSI~20000PSIMediumOil, gas, mud, containing H2S, CO2 ... gasTemperature-46°C~121°C(LU level)MaterialAA,BB,CC,DD,EE,FF,HHStandardPSL1~4PerformancePR1~2Description:• ... level)• Material grade: AA, BB, CC, DD, EE, FF, HH• Specification Level: PSL1 ~ 4• Performance Level: PR1 ~ 2 API 6A Multi-Block ...