wellhead studded cross,flanged cross,four (4) way block piece size:1-13/16 to 41/16 ... pass fty wellhead studded cross,flanged cross,four (4) way block,four-way pieceNB:1-13/16 ,2-1/16,2- ... advantages 1. many yrs' in the api confored wellhead and manifold fields ,2. fty direct exoport ,good price and sincere ... special design welcome wellhead studded cross,flanged cross,four (4) way block,four-way piece