Standard level PSL-2 Performance level PR1 Temperature level P~u Material level DD ... , tapper tubing head, upper flange, gate valve (6pcs), needle valve (2 pcs), small cross, choke (1 pcs) , hanger (1pcs), stop valve ... Medium/ oil, water Connecting Tubing/2 7/8″ EUE Connecting Casing/5 1/2″ Connection Type/lamp Connector oil wellhead equipment api 6a ...