... , hydraulic, pneumatic , handle.4. Connecting typeraised face flange end, flat face flange end, ring joint flange end, but wedding end, socket welding, NPT screwed ... forged material, wellhead equipment( API 6A valves), API 6D pipe line valves, valve parts, x-mas tree, manifold, BOP ... , tubing head, casing head, tee, spool, hanger, flange and OEM service too. we have the certifications such as ...