... integral ball bearing, are manufactured on the basis of technologies from FMC, USA. Various models of swivel Swivel joints, ... ball bearing, are manufactured on the basis of technologies from FMC, USA. Various models of swivel joints and their ... are available, suitable for normal or low temperature, or H2S environments, with sizes ranging from 1" to 4" and rated WP ranging from 2,000psi ~ 20,000psi. ...