Annular blowout preventer(annular bop) is important equipment for drilling well. It widly used in onshore and offshore drilling, geothemal driling. We supply three type of annular bop: bloted-cover, wedged-cover and latched-cover. All type of annular bop are strictly manucatured as per api spec 16a, have same reliable quality as other us products. There type are camaron and hydril in the the word.
