High pressure union introduction of international advanced technology, the use of high-strength alloy steel forging, heat treatment to ensure the connector has a strict uniform microstructure are consistent and bearing capacity, the material used in full compliance with the ASTM and AISI standards, product specifications complete compliance with API Spec 6A standard, reliable sealing product quick handling, general interchangeability. Threaded pipe fittings available products, tubing Lo mosquito, butt-type or non-pressure sealing the ends of the connection.