API 6A Wellhead accessory- high pressure union: Certification:API 6A Application:oilfield equipment WP:High pressure API 6A Wellhead accessory- high pressure union High-pressure union, importing international advanced ... . The type mainly consists of: 100#, 200#, 206#, 207#,211#, 400#, 600#, 602#, 1002#, 1003#, 1502# and 2002#. It is an ...